Park the machine on a level surface.
Move the motion-control levers to the NEUTRAL-LOCK position.
Engage the parking brake.
Lower the mower deck to the lowest height of cut.
Shut off the engine and remove the key.
Remove the belt covers (Figure 1).
Remove the 3 self-tapping screws securing the reverse-drive cover and remove the cover from the right side of the mower deck (Figure 2).
Retain the 3 self-tapping screws for installation in Installing the Right Pulley-Mount Guard and Pulley Guard.
Parts needed for this procedure:
Right pulley-mount guard | 1 |
Right pulley guard | 1 |
Clip | 3 |
Push nut | 3 |
Flange-head bolt (1/4 x 3/4 inch) | 3 |
Secure the right pulley-mount guard to the belt guard using the previously removed 3 self-tapping screws (Figure 3).
Install 3 clips on to the right pulley-mount guard (Figure 4).
Secure the right pulley guard to the right pulley-mount guard using 3 flange-head bolts (1/4 x 3/4 inch) and 3 push nuts (Figure 5).
Parts needed for this procedure:
Left pulley-mount guard | 1 |
Left pulley guard | 1 |
Clip | 4 |
Push nut | 4 |
Flange-head bolt (1/4 x 3/4 inch) | 4 |
Flange-head bolt (5/16 x 3/4 inch) | 1 |
Flange nut (5/16 inch) | 1 |
Remove the button-head bolt (5/16 x 3/4 inch) and flange nut (5/16 inch) from the left side of the mower deck (Figure 6).
Retain the button-head bolt (5/16 x 3/4 inch) and flange nut (5/16 inch).
Note: Raise the mower deck to assist with installing the button-head bolt (5/16 x 3/4 inch) and flange nut (5/16 inch) in the next step.
Secure the left pulley-mount guard to the mower deck using the previously removed button-head bolt (5/16 x 3/4 inch) and flange nut (5/16 inch) and new flange-head bolt (5/16 x 3/4 inch) and flange nut (5/16 inch) as shown in Figure 7.
Install 4 clips on to the left pulley-mount guard (Figure 8).
Secure the left pulley guard to the left pulley-mount guard using 4 flange-head bolts (1/4 x 3/4 inch) and 4 push nuts (Figure 9).
Parts needed for this procedure:
Brace bracket | 1 |
Parts needed for this procedure:
Skirt guard assembly | 1 |
Front, upper support rod | 1 |
Front, lower support rod | 1 |
Left, upper support rod | 1 |
Right, upper support rod | 1 |
Left, lower support rod | 1 |
Right, lower support rod | 1 |
Flange nut (5/16 inch) | 5 |
Washer—For 72-inch decks only | 1 |
Flange-head bolt (5/16 x 3/4 inch) | 5 |
Thread 1 front, upper support rod, 1 front, lower support rod, 1 left, upper support rod, 1 right, upper support rod, 1 left, lower support rod, and 1 right, lower support rod into the skirt guard assembly (Figure 13).
Remove the 2 button-head bolts (5/16 x 3/4 inch) and 2 flange nuts (5/16 inch) from the front of the mower deck (Figure 14).
Retain the 2 button-head bolts (5/16 x 3/4 inch) and 2 flange nuts (5/16 inch).
Position the assembled skirt guard underneath the frame, behind the caster wheels.
Secure the front, lower support rod using the previously removed 2 button-head bolts (5/16 x 3/4 inch) and 2 flange nuts (5/16 inch) as shown in Figure 15.
Remove the front, right flange nut (3/8 inch) from the gearbox mount and the hex-head bolt (1/2 x 2-1/2 inches), washer, and locknut (1/2 inch) from each mower deck strut (Figure 16 and Figure 17).
Retain the flange nut (3/8 inch), 2 hex-head bolts (1/2 x 2-1/2 inches), 2 washers, and 2 locknuts (1/2 inch).
Secure the right, lower support rod to the deck strut and gearbox mount using the previously removed flange nut (3/8 inch), hex-head bolt (1/2 x 2-1/2 inches), washer, and locknut (1/2 inch) as shown in Figure 18 and Figure 19.
Secure the left, lower support rod to the front, lower support rod using the previously removed hex-head bolt (1/2 x 2-1/2 inches) and locknut (1/2 inch) and new 1 flange-head bolt (5/16 x 3/4 inch), 1 washer, and 1 flange nut (5/16 inch) as shown in Figure 20.
Remove the 2 locknuts (1/2 inch) from the front cross-shaft supports (Figure 21).
Secure the front, upper support rod to the front cross-shaft supports using the previously removed 2 locknuts (1/2 inch) to the front cross-shaft support (Figure 22).
Torque the 2 locknuts (1/2 inch) to 77 to 126 N∙m (57 to 93 ft-lb).
Secure the left, upper support rod and right, upper support rod to the brace bracket using 2 flange-head bolts (5/16 x 3/4 inch) and 2 flange nuts (5/16 inch) on each side (Figure 23).
Parts needed for this procedure:
Left frame guard | 1 |
Right frame guard | 1 |
Flange-head bolt (5/16 x 3/4 inch) | 4 |
Flange nut (5/16 inch) | 4 |
Secure the left frame guard and right frame guard to the frame brackets using 2 flange-head bolts (5/16 x 3/4 inch) and 2 flange nuts (5/16 inch) on each side (Figure 24).
Parts needed for this procedure:
Left CE cover | 1 |
Right CE cover | 1 |
Parts needed for this procedure:
Captive adapter | 1 |
Flange-head bolt (1/4 x 3/4 inch) | 2 |
Flat washer | 2 |
Clip | 2 |
Push nut | 2 |
Parts needed for this procedure:
Decal 133-5623 | 1 |
Decal 144-6905—60-inch decks with 25 HP Yanmar diesel engine only | 1 |
Decal 144-6906—72-inch decks with 25 HP Yanmar diesel engine only | 1 |
Decal 144-6907—60-inch decks with 37 HP Yanmar diesel engine only | 1 |
Decal 144-6908—72-inch decks with 37 HP Yanmar diesel engine only |
Apply decals 133-5623 and 144-6905, 144-6906, 144-6907, or 144-6908 to the left side of the machine frame near the serial decal using the dimensions shown in Figure 29.