Nilfisk-Advance Captor 4800 - Page 41

FORM NO. 56043093 / Captor
™
4300, 4800, 5400 - 39
HOPPER SYSTEM
TROUBLESHOOTING GUIDE
Possible Symptom
1 Hopper will not lower
Part B: Hydraulic
Note: To test engine must be running (2400 rpm).
Repair or replace damaged
parts
Does the hopper lower?
Remove and disassemble
•L14 hopper lower
Spool valve (cartridge)
inspect clean and reinstall
Does the hopper lower?
Replace defective spool
valve
•L14 hopper lower
Does the hopper lower?
No
Inspect for possible
mechanical binding of:
•Hopper linkage
•Hopper cylinder
Hopper will not lower
Replace hydraulic
hopper cylinder
No
No
No
Yes