Carlton 2015 - Page 82

15” DRUM TROUBLESHOOTING GUIDE
60
COMPLAINT CAUSE CORRECTION
Auto-Feed not working
properly or at all
• Faulty or broken wiring
• Settings not correct
• Repair or replace wires –
wiring diagram enclosed in
this manual
• Reset following Auto-
Feed/Houston street manual
instructions enclosed in this
manual
Chipper bearings are
overheating
• Bearings are dry
• Bearings worn out
• Setscrews on bearings not
tight
• Grease bearings daily using
Texaco® Starplex II grease
• Replace
• Tighten
Feeding material causes feed
wheels to slow down or stop
• Dull knives
• Relief valve is worn or dirty
• Hydraulic pump has
excessive wear
• Feed wheel motor(s) not
working properly
• Feed wheel springs to tight
• Replace knives (see
Servicing Cutter System
section)
• Clean or replace; reset
pressure
• Replace
• Check & replace
• Adjust
One or both feed wheels don’t
turn or turn too slow to feed
material
• Feed wheel motor(s) not
working properly
• Safety switch not in position
• Relief valve opens too easily
or stuck open
• Feed wheel valve (control
valve) worn & leaking
internally
• Feed wheel relief pressure
off
• One or more hoses may be
crimped or leaking
• Hydraulic oil level low
• Pump has excessive wear
• Feed wheels binding
• Control lever improperly
shifting valve
• Worn or dirty flow divider
• Reverse hoses at flow
divider - if same motor still
doesn't turn, motor is
probably bad; if other motor
is now the one not turning,
the flow divider is probably
bad. Repair or replace
• Make sure the safety switch
is attached properly
• Valve needs to be cleaned or
replaced; reset pressure
• Check & Replace
• Reset pressure to 2500 PSI
for bottom feed wheel or
2000 PSI for top feed wheel
• Replace (see Servicing
Hydraulics section)
• Keep proper oil level per
gage
• Replace pump
• Check bearings, lubricate
properly
• Readjust; valve must open
completely
• Clean or replace