40
- FORM NO. 56043126 - CR 1100, CR 1200
HOPPER SYSTEM
TROUBLESHOOTING GUIDE
Possible Symptom
1
Dump door will not open or close when in dump mode
Part B:
Door will not operate
Inspect for possible
mechanical binding of:
•Dump door
•Dump door linkage
•Dump door cylinder
Repair or replace
damaged parts. Does
dump door operate?
Is broom door cylinder in relief?
Plumb in a pressure gauge at
the pump port (D) See Figure 1.
Test the relief valve setting
(1500psi) by activating the door
close switch.
Adjust, clean or
replace relief valve.
Does dump door
operate?
Remove and disassemble
•L4 door open
•L5 door closed
Spool valve (cartridge)
inspect clean and reinstall
Does the door operate?
Replace defective
spool valve
L4 door open
L5 door closed
Does the door operate
Replace defective dump
door cylinder
Do any hydraulic
functions operate?
See pump motor runs but no
hydraulic functions
no
no
no
no
no
no
no
yes
yes
yes
yes
Содержание Cr 1100
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