12” CHIPPER TROUBLESHOOTING GUIDE
58
ONLY USE QUALIFIED PERSONNEL TO WORK ON HYDRAULIC SYSTEMS
FOR REPAIRS OR REPLACEMENT OF PARTS!!
COMPLAINT CAUSE
CORRECTION
Hydraulic oil overheating and
causing chipper to operate
slower than normal
•
Pump has excessive wear or
not working properly
•
Hose crimped or leaking
•
Relief valve opens too easily
or stuck open
•
Feed wheels binding
•
Hydraulic tank oil level is
too low, hydraulic oil is
contaminated, or hydraulic
filter is dirty
•
Hydraulic oil viscosity is
wrong for atmospheric
temperature
•
Check & replace pump, if
necessary
•
Replace (see Servicing
Hydraulics section)
•
Valve needs to be cleaned or
replaced; reset pressure
•
Check bearings, lubricate
properly
•
Keep oil tank about 7/8 full;
follow proper maintenance
schedule and change oil and
filter as suggested (see
Servicing Hydraulics
section)
•
Contact JP Carlton or local
dealer for recommended oil
type for the situation
Hydraulic pump making loud
noise or a lot of noise (pump is
cavitated)
•
Hydraulic oil viscosity is
wrong for atmospheric
temperature
•
Oil operating temperature
too low
•
Pump has excessive wear
•
Contact JP Carlton or local
dealer for recommended oil
type for the situation
•
Allow system to warm up
•
Replace pump
Auto-Feed not working
properly or at all
•
Faulty or broken wiring
•
Settings not correct
•
All other problems contact
your local dealer or J. P.
Carlton Co.
•
Repair or replace wires –
wiring diagram enclosed in
this manual
•
Reset following Auto-Feed
manual instructions enclosed
in this manual
Chipper won’t start
•
Chipper disk hood safety
switch clip not in position
•
Check chipper disk hood
safety switch to make sure
clip is attached correctly and
fully
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