Troubles And Actions - Komatsu D61EX-24 Operation & Maintenance Manual

ATTACHMENTS AND OPTIONS

TROUBLES AND ACTIONS

OTHER TROUBLE
• For the remedies indicated with (*) in the remedy column, always contact your Komatsu distributor.
• In cases of problems or causes which are not listed below, ask your Komatsu distributor for repairs.
Problem
Lack of rising and pushing force
of ripper
Slow moving
Cylinder lacks holding power.
Oil pressure rises.
Main causes
Low hydraulic oil level
Defective pump
Defective adjustment of relief valve
Defective control valve, abnormal pressure pre-
vention valve, or valve spool
Defective piston ring, packing, or valve
Clogging inside piping
Leakage of oil from piping or hose
Defective piston ring or packing
Defective piston valve
Defective valve spool
Defective abnormal pressure prevention valve or
vacuum prevention valve
Clogging inside piping
Defective adjustment of relief valve
HANDLE HYDRAULIC RIPPER
Remedy
Add oil to specified level.
See EVERY 250 HOURS
MAINTENANCE.
Check, repair. (*)
Check, adjust. (*)
Check, repair. (*)
Check, repair. (*)
Check, repair. (*)
Retighten.
Replace. (*)
Check, repair. (*)
Check, repair. (*)
Check, repair. (*)
Repair. (*)
Check, adjust. (*)
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