Reelmaster® 5410-D or 5510-D Traction Unit

The engine in this machine is EPA Tier 4 Final and stage 3b compliant.

The tires are over-inflated for shipping. Therefore, release some of the air to reduce the pressure. Correct air pressure in the front and rear tires is 83 to 103 kPa (12 to 15 psi).

Important: Maintain even pressure in all tires to ensure that there is uniform contact with the turf.

The control-arm position can be adjusted for your comfort.

1. Loosen the 2 bolts securing the control arm to the retaining bracket (Figure 3).

   

   Figure 3

   1. Control arm
   2. Retaining brackets
   3. Bolt

2. Rotate the control arm to the desired position and tighten the 2 bolts.

Parts needed for this procedure:

1. Remove the reel motors from the shipping brackets.

   Note: Discard the shipping brackets.

2. Remove the cutting units from the cartons.

3. Assemble and adjust the cutting units as described in the Operator's Manual for the cutting units.

4. Make sure that the counter weight (Figure 4) is installed to the proper end of each cutting unit as described in the Operator's Manual for the cutting units.

   

   Figure 4

   1. Counter weight

5. Mount the turf-compensation spring to the same side of the cutting unit as the reel-drive motor. Reposition the turf-compensation spring as follows:

   Note: All cutting units are shipped with the turf-compensation spring mounted to the right side of the cutting unit.

   1. Remove the 2 carriage bolts and nuts securing the rod bracket to the cutting-unit tabs (Figure 5).

      

      Figure 5

      1. Turf-compensation spring
      2. Rod bracket
      3. Spring tube

   2. Remove the flange nut securing the spring-tube bolt to the carrier-frame tab (Figure 5). Remove the assembly.

   3. Mount the spring-tube bolt to the opposite tab on the carrier frame and secure with the flange nut.

      Note: Position the bolt head to the outer side of the tab as shown in Figure 6.

      

      Figure 6

      1. Opposite carrier-frame tab
      2. Rod bracket

   4. Mount the rod bracket to the cutting-unit tabs with the carriage bolts and nuts (Figure 6).

      Important: On cutting unit 4 (left front) and cutting unit 5 (right front), use the rod-bracket-mounting nuts to install the hose guides to the front of the cutting-unit tabs (Figure 7 and Figure 8). The hose guides should lean toward the center cutting unit (Figure 8 and Figure 9).

      Note: When installing or removing the cutting units, make sure that the hairpin cotter is installed in the spring-rod hole next to the rod bracket. When not installing or removing the cutting units, the hairpin cotter must be installed in the hole in the end of the rod.

      

      Figure 7

      1. Cutting unit 1
      2. Cutting unit 2
      3. Cutting unit 3
      4. Cutting unit 4
      5. Cutting unit 5
      6. Reel motor
      7. Weight
      

      Figure 8

      1. Hose guide (cutting unit 4 shown)
      2. Rod bracket
      3. Nut
      

      Figure 9

      1. Hose guides must lean toward the center cutting unit.

6. Lower all lift arms completely.

7. Remove the snapper pin and the cap from the lift-arm-pivot yoke (Figure 10).

   

   Figure 10

   1. Snapper pin
   2. Cap

8. For the front cutting units, slide a cutting unit under the lift arm while inserting the carrier-frame shaft up into the lift-arm-pivot yoke (Figure 11).

   

   Figure 11

   1. Lift arm
   2. Carrier-frame shaft
   3. Lift-arm-pivot yoke

9. Use the following procedure on the rear cutting units when the height of cut is above 19 mm (3/4 inch).

   1. Remove the lynch pin and washer securing the lift-arm-pivot shaft to the lift arm and slide the lift-arm-pivot shaft out of the lift arm (Figure 12).

      

      Figure 12

      1. Lynch pin and washer

   2. Insert the lift-arm yoke onto the carrier-frame shaft (Figure 11).

   3. Insert the lift-arm shaft into the lift arm and secure it with the washer and lynch pin (Figure 12).

10. Insert the cap over the carrier-frame shaft and lift-arm yoke.

11. Secure the cap and the carrier-frame shaft to the lift-arm yoke with the snapper pin (Figure 10).

    Note: Use the slot if a steering cutting unit is desired or use the hole if the cutting unit is to be locked in position

12. Secure the lift-arm chain to the chain bracket with the snapper pin (Figure 13).

    Note: Use the number of chain links described in the Operator's Manual for the cutting unit.

    

    Figure 13

    1. Lift-arm chain
    2. Chain bracket
    3. Pin

13. On cutting unit 4 (left front) and cutting unit 5 (right front), insert the reel-motor hoses into the respective hose guide.

14. Coat the spline shaft of the reel motor with clean grease.

15. Oil the reel-motor O-ring and install it onto the motor flange.

16. Install the motor by rotating it clockwise so that the motor flanges clear the bolts (Figure 14).

    Note: Rotate the motor counterclockwise until the flanges encircle the bolts and then tighten the bolts.

    Important: Make sure that the reel-motor hoses are not twisted, kinked, or at risk of being pinched.

    

    Figure 14

    1. Reel-drive motor
    2. Mounting bolts

The turf-compensation spring transfers weight from the front to the rear roller (Figure 15). This helps to reduce a wave pattern in the turf, also known as marcelling or bobbing.

Important: Make spring adjustments with the cutting unit mounted to the traction unit, pointing straight ahead and lowered to the ground.

1. Make sure that the hairpin cotter is installed in the rear hole in the spring rod (Figure 15).

   

   Figure 15

   1. Turf-compensation spring
   2. Hairpin cotter
   3. Spring rod
   4. Hex nuts

2. Tighten the hex nuts on the front end of the spring rod until the compressed length of the spring is 12.7 cm (5 inches) for 5-inch cutting units or 15.9 cm (6.25 inches) for 7-inch cutting units (Figure 15).

   Note: When operating on rough terrain, decrease the spring length by 12.7 mm (1/2 inch). This slightly decreases the ground following.

Parts needed for this procedure:

Whenever you need to tip the cutting unit to expose the bedknife/reel, prop up the rear of the cutting unit with the kickstand to make sure that the nuts on the back end of the bedbar-adjusting screws are not resting on the work surface (Figure 16).

Figure 16

1. Cutting-unit kickstand

Secure the kickstand to the chain bracket with the snapper pin (Figure 17).

Figure 17

1. Chain bracket
2. Snapper pin
3. Cutting-unit kickstand

Parts needed for this procedure:

On machines requiring CE Compliance, affix the CE warning decal (Part No. 133-2931) over the standard warning decal (Part No. 133-2930).

The seat-adjusting lever allows you to adjust the seat forward and rearward (Figure 19). The weight-adjusting knob adjusts the seat for your weight. The weight gauge indicates when the seat is adjusted to your weight. The height-adjusting knob adjusts the seat for your height.

Figure 19

1. Weight gauge
2. Weight-adjusting knob
3. Height-adjusting knob
4. Adjusting lever

The traction pedal controls the forward and reverse operation (Figure 20). Press the top of the pedal to move forward and the bottom to move rearward. Ground speed depends on how far you press the pedal. For no load, maximum ground speed, set the engine speed to the FAST position and fully press the pedal.

To stop, reduce foot pressure on the traction pedal and allow it to return to the center position.

Figure 20

1. Traction pedal
2. Mow-speed limiter
3. Spacers
4. Brake pedal
5. Parking brake
6. Tilt-steering pedal

When the mow-speed limiter is flipped up, it controls the mow speed and allows the cutting units to be engaged (Figure 20). Each spacer adjusts the mowing speed by 0.8 km/h (0.5 mph). The more spacers you have on the top of the bolt, the slower the mowing speed. To transport the machine, flip back the mow-speed limiter for the maximum transport speed.

Press the brake pedal to stop the machine (Figure 20).

To engage the parking brake, push down on the brake pedal and press the top forward to latch (Figure 20). To release the parking brake, press the brake pedal until the parking-brake latch retracts.

To tilt the steering wheel toward you, press the foot pedal down, pull the steering tower toward you to the most comfortable position, and release the pedal (Figure 20).

The engine-speed switch has 2 modes to change the engine speed (Figure 21). By momentarily tapping the switch, you can change the engine speed in 100 rpm increments. If you hold the switch down, the engine automatically moves to High or Low idle, depending on which end of the switch you press.

Figure 21

1. Lower mow/raise control lever
2. Key switch
3. InfoCenter
4. Enable/disable switch
5. Engine-speed switch
6. Headlight switch

Use the enable/disable switch in conjunction with the lower mow/raise control lever to operate the cutting units (Figure 21).

The InfoCenter LCD display shows information about your machine, such as the operating status, various diagnostics, and other information about the machine (Figure 21).

The key switch has 3 positions: OFF, ON/RUN, and START (Figure 21).

This lever raises and lowers the cutting units and also starts and stops the cutting units when the cutting units are enabled in the MOW mode (Figure 21). You cannot lower the cutting units when the mow/transport lever is in the TRANSPORT position.

Pivot the switch downward to turn on the headlights (Figure 21).

Use the backlap levers in conjunction with the lower mow/raise control lever for backlapping the reels (Figure 22).

Figure 22

1. Backlap levers

With the engine running at normal operating temperature, ensure that the indicator is in the green zone (Figure 23). When the indicator is in the red zone, change the hydraulic filters.

Figure 23

1. Hydraulic-filter-restriction indicator

The power point is a 12 V power supply for electronic devices (Figure 24).

Figure 24

1. Power point

The InfoCenter LCD display shows information about your machine, such as the operating status, various diagnostics, and other information about the machine (Figure 25). There is a splash screen and main information screen of the InfoCenter. You can switch between the splash screen and main information screen, at any time, by pressing any of the InfoCenter buttons and then selecting the appropriate directional arrow.

Figure 25

1. Indicator light
2. Right button
3. Middle button
4. Left button

• Left Button, Menu Access/Back Button— Press this button to access the InfoCenter menus. You can use it to back out of any menu you are currently using.

• Middle Button— Press this button to scroll down menus.

• Right Button— Press this button to open a menu where a right arrow indicates additional content.

Note: The purpose of each button may change depending on what is required at the time. Each button is labeled with an icon displaying its current function.

To access the InfoCenter menu system, press the menu access button while at the main screen. This brings you to the main menu. Refer to the following tables for a synopsis of the options available from the menus:

Settings
Menu Item	Description
Units	Controls the units used on the InfoCenter. The menu choices are English or Metric
Language	Controls the language used on the InfoCenter*.
LCD Backlight	Controls the brightness of the LCD display.
LCD Contrast	Controls the contrast of the LCD display.
Front Backlap Reel Speed	Controls the speed of the front reels in backlap mode.
Rear Backlap Reel Speed	Controls the speed of the rear reels in backlap mode.
Protected Menus	Allows a person authorized by your company with the PIN code to access protected menus.
Auto Idle	Controls the amount of time allowed before returning the engine to low idle when the machine is stationary.
Blade Count	Controls the number of blades on the reel for reel speed.
Mow Speed	Controls the ground speed for determining the reel speed.
Height of cut (HOC)	Controls the height of cut (HOC) for determining the reel speed.
F Reel RPM	Displays the calculated reel speed position for the front reels. The reels can also be manually adjusted.
R Reel RPM	Displays the calculated reel speed position for the rear reels. The reels can also be manually adjusted.

*Only operator-faced text is translated. Faults, Service, and Diagnostics screens are service-faced. Titles appear in the selected language, but menu items are in English.

Protected under Protected Menus—accessible only by entering PIN

There are 8 operating configuration settings that are adjustable within the Settings Menu of the InfoCenter: auto idle time delay, Blade Count, Mow Speed, Height of Cut (HOC), F Reel RPM, and R Reel RPM. These settings can be locked by using the Protected Menu.

Note: At the time of delivery, the initial password code is programmed by your distributor.

Note: The factory default PIN code for you machine is either 0000 or 1234.If you changed the PIN code and forgot the code, contact your authorized Toro distributor for assistance.

1. From the MAIN MENU, use the center button to scroll down to the SETTINGS MENU and press the right button (Figure 26).

   

   Figure 26

2. In the SETTINGS MENU, use the center button to scroll down to the PROTECTED MENU and press the right button (Figure 27A).

   

   Figure 27

3. To enter the PIN code, press the center button until the correct first digit appears, then press the right button to move on to the next digit (Figure 27B and Figure 27C). Repeat this step until the last digit is entered and press the right button once more.

4. Press the middle button to enter the PIN code (Figure 27D).

   Wait until the red indicator light of the InfoCenter illuminates.

   Note: If the InfoCenter accepts the PIN code and the protected menu is unlocked, the word “PIN” displays in the upper right corner of the screen.

Note: Rotate the key switch to the OFF position and then to the ON position locks the protected menu.

You have the ability to view and change the settings in the Protected Menu. Once you access the Protected Menu, scroll down to Protect Settings option. Use the right button to change the setting. Setting the Protect Settings to OFF allows you to view and change the settings in the Protected Menu without entering the PIN code. Setting the Protect Settings to ON hides the protected options and requires you to enter the PIN code to change the setting in the Protected Menu. After you set the PIN code, rotate the key switch OFF and back to the ON position to enable and save this feature.

1. In the Protected Menu, scroll down to Protect Settings.

2. To view and change the settings without entering a passcode, use the right button to change the Protect Settings to OFF.

3. To view and change the settings with a passcode, use the left button to change the Protect Settings to ON, set the passcode, and turn the key in the ignition switch to the OFF position and then to the ON position.

1. In the Settings Menu, scroll down to Auto Idle.

2. Press the right button to change the auto idle time between OFF, 8S, 10S, 15S, 20S, and 30S.

1. In the Settings Menu, scroll down to Blade Count.

2. Press the right button to change the blade count between 5, 8, or 11 blade reels.

1. In the Settings Menu, scroll down to Mow Speed.

2. Press the right button to select mow speed.

3. Use the middle and right buttons to select the appropriate mow speed set on the mechanical mow-speed limiter on the traction pedal.

4. Press the left button to exit mow speed and save the setting.

1. In the Settings Menu, scroll down to HOC.

2. Press the right button to select HOC.

3. Use the middle and right buttons to select the appropriate HOC setting. (If the exact setting is not displayed, select the nearest HOC setting from the list displayed).

4. Press the left button to exit HOC and save the setting.

Although the front and rear reel speeds are calculated by inputting the number of blades, mow speed and HOC into the InfoCenter, the setting can be manually changed to accommodate for different mowing conditions.

1. To change the Reel Speed Settings, scroll down to the F Reel RPM, R Reel RPM, or both.

2. Press the right button to change the reel speed value. As you change the speed setting, the display continues to show the calculated reel speed based on blade count, mow speed and HOC, which was previously entered, but the new value is also displayed.

A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or authorized Toro distributor or go to www.Toro.com for a list of all approved attachments and accessories.

To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.

Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Servicing the Engine Oil.

Clean debris off the screen, oil cooler, and front of the radiator daily and more often if conditions are extremely dusty and dirty. Refer to Removing Debris from the Cooling System.

The cooling system is filled with a 50/50 solution of water and permanent ethylene glycol antifreeze. Check the level of coolant in the expansion tank at the beginning of each day before starting the engine. The capacity of the cooling system is 6.6 L (7.0 US qt).

1. Check the level of coolant in the expansion tank (Figure 29).

   The coolant level should be between the marks on the side of the tank.

   

   Figure 29

   1. Expansion tank

2. If the coolant level is low, remove the expansion-tank cap and replenish the system. Do not overfill.

3. Install the expansion-tank cap.

The machines reservoir is filled at the factory with approximately 30 L (8 US gallons) of high-quality hydraulic fluid. Check the level of the hydraulic fluid before the engine is first started and daily thereafter. The recommended replacement fluid is as follows:

Alternate fluids: If the Toro fluid is not available, other fluids may be used provided they meet all the following material properties and industry specifications. Do not use synthetic fluid. Consult with your lubricant distributor to identify a satisfactory product.

Note: Toro does not assume responsibility for damage caused by improper substitutions, so use only products from reputable manufacturers who stand behind their recommendation.

Important: The ISO VG 46 Multigrade fluid has been found to offer optimal performance in a wide-range of temperature conditions. For operation in consistently high ambient temperatures, 18°C (65°F) to 49°C (120°F), ISO VG 68 hydraulic fluid may offer improved performance.

Premium Biodegradable Hydraulic Fluid-Mobil EAL EnviroSyn 46H

Important: Mobil EAL EnviroSyn 46H is the only synthetic biodegradable fluid approved by Toro. This fluid is compatible with the elastomers used in Toro hydraulic systems and is suitable for a wide-range of temperature conditions. This fluid is compatible with conventional mineral oils, but for maximum biodegradability and performance, the hydraulic system should be thoroughly flushed of conventional fluid. The oil is available in 19 L (5 US gallon) containers or 208 L (55 US gallon) drums from your Mobil distributor.

Important: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic system oil is available in 20 ml (2/3 oz) bottles. 1 bottle is sufficient for 15 to 22 L (4 to 6 gallons) of hydraulic oil. Order Part No. 44-2500 from your authorized Toro distributor. This red dye is not recommended for use with biodegradable fluids. Use food coloring.

1. Park the machine on a level surface, lower the cutting units, shut off the engine, and remove the key.

2. Clean the area around the filler neck and cap of the hydraulic tank (Figure 30). Remove the cap from the filler neck.

   

   Figure 30

   1. Hydraulic-tank cap

3. Remove the dipstick from the filler neck and wipe it with a clean rag.

4. Insert the dipstick into the filler neck; then remove it and check the level of the fluid.

   Note: The fluid level should be within 6.3 mm (1/4 inch) of the mark on the dipstick.

   Important: Do not overfill.

5. If the level is low, add appropriate fluid to raise the level to the FULL mark.

6. Install the dipstick and cap onto the filler neck.

Each day before operating, check reel-to-bedknife contact, regardless if the quality of cut had previously been acceptable. There must be light contact across the full length of the reel and the bedknife (refer to Adjusting the Reel to Bedknife in the Operator's Manual for the cutting units).

Torque the wheel nuts to 94 to 122 N∙m (70 to 90 ft-lb).

To ensure optimum performance of the parking-brake system, burnish (break in) the brakes before use. Set the forward traction speed to 6.4 km/h (4 mph) to match the reverse traction speed (all 8 spacers moved to the top of the mow-speed control). With the engine at high idle, proceed forward with the mow-speed-control stop engaged and ride the brake for 15 seconds. Proceed backward at full reverse speed and ride the brake for 15 seconds. Repeat this 5 times, waiting 1 minute between each forward and reverse cycle to avoid overheating the brakes; refer to Adjusting the Parking Brakes.

Important: The fuel system automatically bleeds itself when any of the following situations occur:

• You are starting a new machine for the first time.

• The engine has ceased running due to lack of fuel.

• Maintenance has been performed upon the fuel system components.

Note: Cutting grass at a rate that loads the engine promotes DPF regeneration.

1. Move the machine to the job site and align the machine outside the cutting area for the first cutting pass.

2. Ensure that the PTO switch is set to the DISABLE position.

3. Move the lever for the mow-speed limiter forward.

4. Press the throttle-speed switch to set the engine speed to HIGH IDLE.

5. Use the joystick to lower the cutting units to the ground.

6. Press the PTO switch to prepare cutting units for operation.

7. Use the joystick to raise the cutting units off the ground.

8. Begin moving the machine toward the cutting area and lower the cutting units.

   Note: Cutting grass at a rate that loads the engine promotes DPF regeneration.

9. When you complete the mowing pass, use the joystick to lift the cutting units.

10. Perform a tear-shaped turn to quickly line up for your next pass.

The diesel particulate filter (DPF) is part of the exhaust system. The diesel-oxidation catalyst of the DPF reduces harmful gasses and the soot filter removes soot from the engine exhaust.

The DPF regeneration process uses heat from the engine exhaust to incinerate the soot accumulated on the soot filter, converting the soot to ash, and clears the channels of the soot filter so that filtered engine exhaust flows out the DPF.

The engine computer monitors the accumulation of soot by measuring the back pressure in the DPF. If the back pressure is too high, soot is not incinerating in the soot filter through normal engine operation. To keep the DPF clear of soot, remember the following:

• Passive regeneration occurs continuously while the engine is running—run the engine at full engine speed when possible to promote DPF regeneration.

• If the back pressure in the DPF is too high or a reset regeneration has not occurred for 100 hours, the engine computer signals you through the InfoCenter when reset regeneration is running.

• Allow the reset regeneration process to complete before shutting off the engine.

Operate and maintain your machine with the function of the DPF in mind. Engine load at high idle (full throttle) engine speed generally produces adequate exhaust temperature for DPF regeneration.

Important: Minimize the amount of time that you idle the engine or operate the engine at low-engine speed to help reduce the accumulation of soot in the soot filter.

DPF Soot Accumulation

• Over time, the diesel particulate filter accumulates soot in the soot filter. The computer for the engine monitors the soot level in the DPF.

• When enough soot accumulates, the computer informs you that it is time to regenerate the DPF.

• DPF regeneration is a process that heats the DPF to convert the soot to ash.

• In addition to the warning messages, the computer reduces the power produced by the engine at different soot-accumulation levels.

Engine Warning Messages—Soot Accumulation

Indication Level	Fault Code	Engine Power Rating	Recommended Action
Level 1: Engine Warning	Figure 31 Check EngineSPN 3719, FMI 16	The computer de-rates the engine power to 85%.	Perform a parked regeneration as soon as possible; refer to Parked or Recovery Regeneration.
Level 2: Engine Warning	Figure 32 Check EngineSPN 3719, FMI 0	The computer de-rates the engine power to 50%.	Perform a recovery regeneration as soon as possible; refer to Parked or Recovery Regeneration.

DPF Ash Accumulation

• The lighter ash is discharged through the exhaust system; the heavier ash collects in the soot filter.

• Ash is a residue of the regeneration process. Over time, the diesel particulate filter accumulates ash that does not discharge with the engine exhaust.

• The computer for the engine calculates the amount of ash accumulated in the DPF.

• When enough ash accumulates, the engine computer sends information to the InfoCenter in the form of an engine fault to indicate the accumulation of ash in the DPF.

• The fault messages indicate that it is time to service the DPF.

• In addition to the warnings, the computer reduces the power produced by the engine at different ash-accumulation levels.

InfoCenter Advisory and Engine Warning Messages—Ash Accumulation

Indication Level	Fault Code	Engine Speed Reduction	Engine Power Rating	Recommended Action
Level 1: Engine Warning	Figure 33 Check EngineSPN 3720, FMI 16	None	The computer de-rates the engine power to 85%.	Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter
Level 2: Engine Warning	Figure 34 Check EngineSPN 3720, FMI 16	None	The computer de-rates the engine power to 50%.	Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter
Level 3: Engine Warning	Figure 35 Check EngineSPN 3251, FMI 0	Engine speed at maximum torque + 200 rpm	The computer de-rates the engine power to 50%.	Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter

Types of Diesel Particulate Filter Regeneration

Types of diesel particulate filter regeneration that are performed while the machine is operating:

Type of Regeneration	Conditions that cause DPF regeneration	DPF description of operation
Passive	Occurs during normal operation of the machine at high-engine speed or high-engine load	• The InfoCenter does not display an icon indicating passive regeneration.
		• During passive regeneration, the DPF processes high-heat exhaust gasses, oxidizing harmful emissions, and burning soot to ash.
		Refer to Passive DPF Regeneration.
Assist	Occurs because of low-engine speed, low-engine load, or after the computer detects the DPF is becoming obstructed with soot	• The InfoCenter does not display an icon indicating assist regeneration.
		• During assist regeneration, the engine computer adjusts the engine settings to raise the exhaust temperature.
		Refer to Assist DPF Regeneration.
Reset	Occurs every 100 hours	• When the high exhaust-temperature icon is displayed in the InfoCenter, a regeneration is in progress.
	Also occurs after assist regeneration only if the computer detects that assist regeneration did not sufficiently reduce the soot level
		• During reset regeneration, the engine computer adjusts the engine settings to raise the exhaust temperature.
		Refer to Reset Regeneration.

Types of diesel particulate filter regeneration that require you to park the machine:

Type of Regeneration	Conditions that cause DPF regeneration	DPF description of operation
Parked	Occurs because the computer detects back pressure in the DPF due to soot buildup	• When the reset-standby/parked or recovery regeneration icon or ADVISORY #188 displays in the InfoCenter, a regeneration is requested.
	Also occurs because the operator initiates a parked regeneration
	May occur because you set the InfoCenter to inhibit reset regeneration and continued operating the machine, adding more soot when the DPF already needs a reset regeneration	• Perform the parked regeneration as soon as possible to avoid needing a recovery regeneration.
	May result from using the incorrect fuel or engine oil	• A parked regeneration requires 30 to 60 minutes to complete.
		• You must have at least a 1/4 tank of fuel in the tank.
		• You must park the machine to perform a parked regeneration.
		Refer to Parked or Recovery Regeneration.
Recovery	Occurs because the operator ignored requests for a parked regeneration and continued operating the machine, adding more soot to the DPF	• When the reset-standby/parked or recovery regeneration icon or ADVISORY #190 displays in the InfoCenter, a recovery regeneration is requested.
		• A recovery regeneration requires up to 3 hours to complete.
		• You must have at least a 1/2 tank of fuel in the machine.
		• You must park the machine to perform a recovery regeneration.
		Refer to Parked or Recovery Regeneration.

Accessing the DPF Regeneration Menus

Accessing the DPF Regeneration Menus

1. Access the Service menu, press the center button to scroll down to the DPF REGENERATION option (Figure 36).

   

   Figure 36

2. Press the right button to select the DPF Regeneration entry (Figure 36).

Time Since Last Regeneration

Access the DPF Regeneration menu, press the center button to scroll down to the LAST REGEN field (Figure 37).

Use the LAST REGEN field to determine how many hours you have run the engine since the last reset, parked, or recovery regeneration.

Figure 37

Technician Menu

Important: For operating convenience, you may decide to perform a parked regeneration before the soot load reaches 100%, provided the engine has run more than 50 hours since the last successful reset, parked, or recovery regeneration.

Use the technician menu to view the current state of engine regeneration control and view the reported soot level.

Access the DPF Regeneration menu, press the center button to scroll down to the TECHNICIAN option, and press the right button to select the Technician entry (Figure 38).

Figure 38

• Use the DPF operation table to understand the current state of DPF operation (Figure 39).

  

  Figure 39

  .

  DPF Operation Table

  State	Description
  Normal	The DPF is in normal-operating mode—passive regeneration.
  Assist Regen	The engine computer is performing an assist regeneration.
  Reset Stby	The engine computer is trying to run a reset regeneration, but 1 of the following conditions prevents regeneration:	The regen inhibit setting is set to ON.
  		The exhaust temperature is too low for regeneration.
  Reset Regen	The engine computer is running a reset regeneration.
  Parked Stby	The engine computer is requesting that you run a parked regeneration.
  Parked Regen	You initiated a parked regeneration request and the engine computer is processing the regeneration.
  Recov. Stby	The engine computer is requesting that you run a recovery regeneration.
  Recov. Regen	You initiated a recovery regeneration request and the engine computer is processing the regeneration.

• View the soot load which is measured as the percentage of soot in the DPF(Figure 40); refer to the soot-load table.

  Note: The soot load value varies as the machine is operated and DPF regeneration occurs.

  

  Figure 40

  Soot-Load Table

  Important Soot Load Values	Regeneration State
  0% to 5%	Minimum soot load range
  78%	The engine computer performs an assist regeneration.
  100%	The engine computer automatically requests a parked regeneration.
  122%	The engine computer automatically requests a recovery regeneration.

Reset Regeneration

Caution

The exhaust temperature is hot (approximately 600°C (1,112°F) during DPF regeneration. Hot exhaust gas can harm you or other people.

• Never operate the engine in an enclosed area.

• Make sure that there are no flammable materials around the exhaust system.

• Never touch a hot exhaust system component.

• Never stand near or around the exhaust pipe of the machine.

Figure 41

• The high exhaust-temperature icon displays in the InfoCenter (Figure 41).

• The engine computer adjusts engine settings to raise the exhaust temperature.

  Important: The high exhaust-temperature icon indicates that the exhaust temperature discharged from of your machine may be hotter than during regular operation.

• While operating the machine, run the engine at full engine speed and high load when possible to promote DPF regeneration.

• The icon displays in the InfoCenter while the reset regeneration is processing.

• Whenever possible, do not shut off the engine or reduce engine speed while the reset regeneration is processing.

  Important: Whenever possible, allow the machine to complete the reset regeneration process before shutting off the engine.

Periodic Reset Regeneration

If the engine has not completed a successful Reset, Parked, or Recovery regeneration in the previous 100 hours of engine operation, the engine computer will attempt to perform a reset regeneration.

Setting the Inhibit Regen

Reset Regeneration Only

Note: If you set the InfoCenter to inhibit regeneration, the InfoCenter displays ADVISORY #185 (Figure 42) every 15 minutes while the engine requests a reset regeneration.

Figure 42

A reset regeneration produces the elevated engine exhaust. If you are operating the machine around trees, brush, tall grass, or other temperature-sensitive plants or materials, you can use the Inhibit Regen setting to prevent the engine computer from performing a reset regeneration.

Important: When you shut off the engine and start it again, the inhibit regen setting defaults to OFF.

1. Access the DPF Regeneration menu, press the center button to scroll down to the INHIBIT REGEN option, and press the right button to select the Inhibit Regen entry (Figure 43).

   

   Figure 43

2. Press the right button to change the inhibit regeneration setting from On to Off (Figure 43) or from Off to On (Figure 44).

   

   Figure 44

Allowing a Reset Regeneration

The InfoCenter displays the high exhaust-temperature icon when the reset regeneration is in process.

Note: If INHIBIT REGEN is set to ON, the InfoCenter displays ADVISORY #185 (Figure 45). Press button 3 to set inhibit regeneration setting to OFF and continue with the reset regeneration.

Figure 45

Note: If the engine exhaust temperature is too low, the InfoCenter displays ADVISORY #186 (Figure 46) to inform you to set the engine to full throttle (high idle).

Figure 46

Note: When the reset regeneration completes, the high exhaust-temperature disappears from the InfoCenter screen.

You can adjust the counterbalance on the rear cutting-unit lift arms to compensate for different turf conditions and to maintain a uniform height of cut in the rough conditions or in areas of thatch buildup.

You can adjust each counterbalance spring to 1 of 4 settings. Each increment increases or decreases counterbalance on the cutting unit by 2.3 kg (5 lb). You can position the springs on the back side of the first spring actuator to remove all counter balance (fourth position).

1. Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key.

2. Insert a tube or similar object onto the long spring end and pivot it around the spring actuator to the desired position (Figure 67).

   Caution

   The springs are under tension and could cause personal injury.

   Use caution when adjusting the springs.

   

   Figure 67

   1. Spring
   2. Spring actuator

3. Repeat the procedure on the other spring.

1. Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key.

2. The lift-arm switch is located underneath the hydraulic tank behind the front, right lift arm (Figure 68).

3. Loosen the switch-mounting screws and move the switch down to increase the lift-arm turnaround height or move the switch up to decrease the lift-arm turnaround height (Figure 68).

   

   Figure 68

   1. Switch
   2. Lift-arm sensing device

4. Tighten the mounting screws.

In an emergency, you can move the machine by actuating the bypass valve in the variable displacement hydraulic pump and pushing or towing the machine.

Important: Do not push or tow the machine faster than 3 to 4.8 km/h (2 to 3 mph) because internal transmission damage may occur. The bypass valve must be open whenever you push or tow the machine.

1. Rotate the bypass-valve bolt 1-1/2 turns to open and allow oil to bypass internally (Figure 69).

   Note: The bypass valve is located on the left side of the hydrostat. By bypassing the fluid, you can move the machine slowly without damaging the transmission.

   

   Figure 69

   1. Bypass-valve bolt

2. Close the bypass valve before starting the engine. However, do not exceed 7 to 11 N∙m (5 to 8 ft-lb) torque to close the valve.

   Important: Running the engine with the bypass valve open causes the transmission to overheat.

• Front—the hole in the rectangular pad, under the axle tube, inside each front tire (Figure 70)

  

  Figure 70

  1. Front tie-down

• Rear—each side of the machine on the rear frame (Figure 71)

  

  Figure 71

  1. Rear tie-down

Note: Use jack stands to support the machine when required.

• Front—rectangular pad, under the axle tube, inside each front tire (Figure 72).

  

  Figure 72

  1. Front jacking point

• Rear—rectangular axle tube on the rear axle.

The machine is equipped with a diagnostic light, which indicates if the machine detects a malfunction. The diagnostic light is located on the InfoCenter, above the display screen (Figure 73). When the machine is functioning properly and the key switch is moved to the ON/RUN position, the diagnostic light turns on briefly to indicate that the light is working properly. When a machine advisory message appears, the light illuminates when the message is present. When a fault message appears, the light blinks until the fault is resolved.

Figure 73

1. Diagnostic light

The purpose of the interlock switches is to prevent the engine from cranking or starting unless the traction pedal is in the NEUTRAL position, the Enable/Disable switch is in the DISABLE position, and the Lower Mow/Raise control is in the NEUTRAL position. In addition, the engine should stop when you press the traction pedal while you are off the seat or if the parking brake is engaged.

• Use full-width ramps for loading the machine onto a trailer or truck.

• Tie the machine down securely.

Use the list below to identify and describe the different functions of the solenoids in the hydraulic manifold. Each solenoid must be energized to allow the function to occur.

Important: Before welding on the machine, disconnect both cables from the battery, both wire harness plugs from the electronic control module, and the terminal connector from the alternator to prevent damage to the electrical system.

Checking the Fuses

There are 8 fuses in the electrical system. The fuse block is located behind the control-arm-access panel (Figure 90).

Figure 90

1. Fuse block

Figure 91