General instructions
1.3 GROVE customer support maintenance instructions
Maintenance Manual GMK 4075 2 084 643 en 1 - 3
02.07.2001
Numerous defects and failures are caused by improper maintenance such as:
– lack of oil, grease or antifreeze,
–dirt,
– rope damage,
– defective compressed air and hydraulic systems,
– hose damage or loose screw connections,
– defective brakes,
– defective tyres or wheel rims,
– exceeded maintenance intervals.
For your safety and the safety of others, avoid these errors by carrying out
maintenance work carefully within the specified intervals. Do not put off
maintenance work that is due. Notify either your local GROVE Customer
Support or your qualified repair personnel immediately should repair work
become necessary. This work may only be carried out by trained, qualified
personnel.
A few general maintenance instructions:
•Clean the parts of the truck crane that are to be serviced, particularly the
areaaroundoilfiller,inspection,anddrainopeningsandlubricatingnipples.
•When changing the oil, let the oil run out at operating temperature.
•Ensure that only oils and lubricants specified in the Lubrication chart,
Chapter 6 are used.
•Replace all filters within the specified period if cleaning is not explicitly per-
mitted.
•Replace all seals before assembly. Clean the sealing surfaces.
•Only tighten loose screw connections on hydraulic systems when the sys-
tem is depressurized.
•Keep brake and clutch linings free of grease.
•Replace hydraulic hoses immediately once damage or penetration of mois-
ture becomes visible.
•When handling hydraulic oil, cleanliness is imperative. Even new hydraulic
oil must be filtered.
•Check fastening and retaining elements (screws, nuts, lock washers) be-
fore re-using them and replace them if necessary.
Tightening torques may be found in sections 10 - 1 and 1 0 -2.
