TM 5-3810-307-10
2-11.1
Service and Repairs.
Service and repairs to the crane must only be performed by a qualified person. All
service and repairs must be performed in accordance with manufacturer's recommendations, this
handbook and the Service Manual for this machine. All replacement parts must be Grove
approved.
Any modification, alteration, or change to a crane which affects its original design
and is not authorized and approved by Grove Worldwide is STRICTLY PROHIBITED. Such action
invalidates all warranties and makes the owner/user liable for any resultant accidents.
Before performing any maintenance, service, or repairs on the crane:
The boom should be fully retracted and lowered and the load placed on the
ground.
Stop the engine and disconnect the battery.
Controls should be properly tagged. Never operate the crane if it is
TAGGED-OUT nor attempt to do so until it is restored to proper operating
condition and all tags have been removed by the person(s) who installed
them.
Recognize and avoid pinch-points while performing maintenance. Stay clear of
sheave wheels, holes, and lattice work in crane booms.
After maintenance or repairs:
Replace all guards and covers that had been removed.
Remove all tags, connect the battery, and perform a function check of all
operating controls.
Load tests must be performed when a structural or lifting member is involved
in a repair.
2-11.2
Lubrication.
The crane must be lubricated according to the factory recommendations for
lubrication points, time intervals, and types. Lubricate at more frequent intervals when working
under severe conditions.
Exercise care when servicing the hydraulic system of the crane, as pressurized
hydraulic oil can cause serious injury. The following precautions must be taken when servicing the
hydraulic system:
1.
Follow the manufacturer's recommendations when adding oil to the system.
Mixing the wrong fluids could destroy seals, causing machine failure.
2-19
