HPU200 Hydraulic Power Units
Kobelt Manufacturing Co. Ltd.
Rev B
MNL-HPU200
23 of 36
7
T
ROUBLESHOOTING
If you encounter problems with the operation of your product, please refer to the trouble-
shooting suggestions before contacting Kobelt for assistance. If the steps below do not
resolve your issue, please reach out either Kobelt directly or our Dealers in your area.
Table 6: Common Solutions
Problem
(Issue encountered)
Cause
(What it means)
Corrective Action
(What to do)
Steering gear goes hard
over
Short circuit in
electrical wiring to
solenoid
Test wiring and solenoid valve coils.
Solenoid valve
contaminated
Isolate lines, clean and/or repair the
solenoid valve as required.
Steering gear does not
respond
Solenoid not being
energized
Manually operate the solenoid valve.
Pump filter plugged
due to
contaminated
Clean or replace filter.
No pressure on
gauge.
Bypass open.
1.
Check if bypass valve opens due to
contamination.
2.
Check if flow valve open
3.
Check drive coupling
Pump is noisy
Air is in the system
Fill and bleed the hydraulic system to
remove air.
Motor is running but
not making pressure
Motor direction is
not correct
Reverse motor wires.
