JLG 4017RS Service Manual - Manual (Page 84)

Boom
3-44 3614RS, 4017RS
10. Excessive chain wear. 1. Improper chain adjustment. 1. Adjust to correct tension. Refer to
Section 3.15, “Boom Extend and
Retract Chains - 3614RS &
4017RS.”- Replace chains as
needed.
2. Chain sheave(s) not properly
lubricated.
2. Lubricate chain sheave. Refer to
Section 2.6, “Service and
Maintenance Schedules.”
3. Chain sheave(s) not rotating
freely.
3. Lubricate chain sheave. Refer to
Section 2.6, “Service and
Maintenance Schedules.” Repair or
replace chain sheave(s) as needed.
4. Improper chain lubrication. 4. Lubricate at regular intervals.
Refer to Section 2.6, “Service and
Maintenance Schedules.” Replace
chains as needed.
Problem Possible Causes Remedy