Warning

CALIFORNIA

Proposition 65 Warning

Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Safety

Warning

The crumber slides in its frame and can severely injure or amputate your fingers.

Keep your hands away from moving parts and wear leather gloves when handling the crumber.

Safety and Instructional Decals

Graphic

Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or missing.

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Installation

Warning

Contact with moving parts can result in personal injury.

  • Keep your fingers, hands, and clothing away from moving parts.

  • Never attempt to manipulate the attachment while the engine is running.

Installing the Crumber

  1. Park the machine on a level surface, engage the parking brake (if equipped), and lower the loader arms.

  2. Shut off the engine and remove the key.

  3. Install the crumber over the trencher safety bar and secure it using 2 bolts and locknuts.

    Note: Depending on your boom and chain configuration, you may need an extension for the trencher safety bar to ensure that the crumber does not contact the chain or digging teeth. Refer to your Authorized Service Dealer for more information.

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Operation

Transporting the Crumber

Before transporting the trencher with the crumber attached, complete the following procedure:

  1. Park the machine on a level surface, engage the parking brake (if equipped), and lower the loader arms.

  2. Shut off the engine and remove the key.

  3. Remove the lynch pin and clevis pin stored in the crumber bar.

  4. Slide the crumber back as far as possible.

  5. Install the clevis pin through the crumber slide and bar, securing it with the lynch pin.

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Changing the Scraper

The scraper installed on the crumber must correspond to the width of the trencher chain. Remove the 2 bolts and 2 nuts securing the scraper, then install the new scraper in its place.

Note: The scrapers are slightly narrower than the chains with which they should be paired. For example, the 15.2 cm (6 inches) scraper is actually 14.0 cm (5 1/2 inches) wide but is intended to be used with the 15.2 cm (6 inches) trencher chain.

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