Carrier operating and maintanance Manual del operador descargar pdf (Pagina 40)

Rev. __________

Date _________

3.4

TROUBLESHOOTING

PROBLEM CAUSE SOLUTION

PROBLEMS ENCOUNTERED WHILE UNIT IS IN TRANSIT

Looseness and rattling a. Loose Hold Down Blocks a. Shim Hold Down Blocks as

of deck required.

WINCH FUNCTIONING IMPROPERLY

Winch screeches during a. Insufficient lubrication a. Lubricate per lube chart

operation

Winch will not pull load a. Free spooling device a. Engage

on deck disengaged

b. Insufficient Relief Valve b. Reset to correct setting

pressure using gauge

c. Sheared keys or broken c. Inspect and replace

chain at coupling

d. Hydraulic pump worn d. Inspect and replace

Cable build-up on one a. Off centered load a. Recenter load if possible

side of spool or other

VALVE BANK FUNCTIONING IMPROPERLY

Valve bypasses oil or a. Insufficient relief valve a. Reset to correct setting using

squeals during all setting gauge

operations b. Broken relief spring b. Inspect and replace

Valve handles stick, b. Broken centering spring b. Inspect, clean or replace

tight or frozen or clogged with dirt at

bottom of spool

Valve leaks at top or a. Defective seals a. Replace

bottom of spools

CYLINDERS FUNCTIONING IMPROPERLY

Cylinders leak oil a. Defective seals or rod a. Inspect and replace

Erratic operation of a. Air in hydraulic system a. Cycle hydraulic system

cylinders 10-15 times to remove air

b. Defective pump (Pulsating) b. Replace if necessary

HYDRAULIC SYSTEM FUNCTIONING IMPROPERLY

Slow Operation a. Low engine RPM a. Speed up engine

b. Low oil level b. Reservoir should be 3/4 full

with cylinders retracted

c. Blocked, restricted or c. Inspect, remove blockage or

collapsed hoses reposition hoses affected

d. Dirty hydraulic oil d. Drain, flush and refill with

clean oil

e. Hydraulic pump worn e. Rebuild or replace

f. Relief valve in valve bank f. 1) Reset to correct pressure

bypassing using gauge

2) Check if relief spring is

broken. Replace if

necessary

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Carrier operating and maintanance Manual del operador Pagina 40

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