5
It is recommended that fault finding is only carried out by technically competent personnel.
Whilst every effort has been made to ensure these procedures are as comprehensive as
possible, they will not cover all eventualities.
If difficulty is experienced in identifying a fault, contact UpRight or their local
representative.
1. I.C. Engine will not start (if fitted):
A) Fuel in tank?
B) Emergency stops are reset (cage & ground controls).
C) Engine Ignition switched on
D) Start Battery correctly charged
E) If engine is cold, has choke been applied (manual) Does the choke pull in (electric).
F) Check engine blade fuse (next to engine)
2. DC motor not turning when trying to lower outriggers:
A) Key selector switch must be on ground.
B) Can you hear contactor on motor clicking ?
C) Check battery level / Should be minimum 2/3 charged
D) Check motor contactor.
E) Check motor brushes.
F) Motor fuse
G) Check that the emergency stop button has not been activated.
3. DC motor turning but not able to operate outriggers:
A) Top boom must be down and boom switch (under top boom, above slew post)
activated
B) Limitswitch arm must be secure on switch spindle (boom switch)
C) Check that diverter valve is de-activated (see hydraulic circuit)
D) Check hydraulic pressure / No pressure - Check pump.
4. DC motor not turning - After having lowered all outriggers
A) Check key selector switch
B) Check that no emergency stop button has accidentally been activated.
C) Check outrigger switches - Outriggers must be correctly set.
D) Is audible warning in cage “ON” ? - If yes - Check outrigger switches.
E) Check 2 - . B), C), D), E).
5. Boom will not raise / lower when control lever is operated and DC motor running
A) Correct control station selected, ie ground/platform.
B) Check oil level.
C) Check that diverter valve is activated (see hydraulic diagram)
D) Check that other control valve has all spools in centre position
E) Check hydraulic pressure / No pressure - Check pump
F) Check that emergency lowering valve is not open (on cylinder)
G) Check for obstructions.
FAULT FINDING
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