FORM NO. 56043126 - CR 1100, CR 1200 -
43
HOPPER SYSTEM
TROUBLESHOOTING GUIDE
Possible Symptom
1
Hydraulic Hopper will not raise.
Part B:
Note: Key switch must be turned on
Replace hydraulic hopper cylinder
Hopper will not raise
Inspect for possible mechanical
binding of:
•Hopper linkage
•Hopper cylinder
Repair or replace damaged parts
does the hopper raise?
Is hopper cylinder in relief?
Is the hopper over its weight
550 lbs. capacity?
Empty the hopper.
Does the hopper raise?
Plumb in a pressure gauge at the
pump port (B) See Figure 1.
Test the relief valve setting
(1500psi) by activating the
hopper up switch.
Adjust, clean or
replace relief valve.
Does the hopper raise?
Remove and disassemble
•L6 hopper raise spool valve
(cartridge) inspect clean and reinstall.
•Does the hopper raise?
Replace defective
spool valve L6 hopper
raise.
Does the hopper raise?
Does the pump motor run?
See Pump motor runs but
no hydraulic function.
no
no
no
no
no
no
no
no
no
yes
yes
yes
yes
Do any other hydraulic functions
operate?
yes
no
yes
Содержание Cr 1100
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