SECTION 35 - HYDRAULIC SYSTEM
35-15
PROBLEM POSSIBLE CAUSE CORRECTION
Hydraulic system hot Low oil flow pump Plugged inlet line, clean or replac
line
Main control valve linkage or spoo
binding or damaged
Check and correct linkage
Auxiliary boom hydraulic contro
Lock handle in neutral when not i
Hydraulic oil cooler restricted
Clean oil cooler
Leaking cylinder packing
Main system relief valve low
Repair cylinders
Check main system pressure
Main system relief valve low
pressure
Hydraulic attachment being over
Check main system pressure
Back off and let system cool down,
Hydraulic attachment being over
used
Back off and let system cool down,
DO NOT operate at or close t
relief pressure
Oil filter indicator light stays on Oil filter clogged
Incomplete circuit
Undersize tubes, hoses, or fittings
Change filter
Check the DkGn/O wire an
connections
Replace any undersize tubes,
Undersize tubes, hoses, or fitting
Filter base
Replace any undersize tubes
hoses, or fittings
Replace if pressure differentia
across filter is over 40 PSI