Lull 944E-42 Service Manual User Manual download pdf (Page 103)

3.55

Model 644E-42/944E-42 Rev. 6/04

Boom

11. Excessive chain wear. 1. Improper chain adjustment.

2. Chain sheave(s) not properly

lubricated.

3. Chain sheave(s) not rotating

freely.

4. Improper chain lubrication.

1. Adjust to correct tension. (Refer

to Section 3.4.4, “Boom Chain

Tension Adjustment.”) Replace

chain(s) as needed. (Refer to

Section 3.4.5, “Boom Extend

and Retract Chains Removal

and Replacement.”)

2. Lubricate chain sheave. (Refer

to Section 3.4.2, “Chain

Lubrication.”)

3. Lubricate chain sheave. (Refer

to Section 3.4.2, “Chain

Lubrication.”) Repair or replace

chain sheave(s) as needed.

4. lubricate at regular intervals

(Refer to the appropriate

Owners/Operators Manual for

lubrication information.)

Replace chain(s) as needed.

(Refer to Section 3.4.5, “Boom

Extend and Retract Chains

Removal and Replacement.”)

Boom Troubleshooting (Continued)

Problem Cause Remedy

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