PLS Access ACC-1150, Instruction Manual

Page: 42 / 84

12
12.1 Trouble shooting
Trouble Shooting
Problem Fault Solution
Lift not operating Circuit breaker or fuse tripped Reset circuit breaker or replace fuse
Cab switch not turned on Turn cab switch on
Door switch sticking Lubricate and free switch
Low voltage Charge battery
Poor earth Check battery cables & earth points
Corrosion on crimped cables Re-crimp cables and clean corrosion
Loose power-pack electrical connections Check electrical connections
Handset failure Replace handset
Lift stuck in box Box lock not fully disengaged Make sure lock handle is pulled fully up
Lift is pressurized up in box
Press Down on handset to lower lift or
open the down valve to release
pressure
Box grounded and damaged underneath Repair / replace box
Lift not powering IN Motor cut-off switch (In switch) Check switch adjustment & lubricate
Umbilical damaged Replace umbilical cable
Carriage solenoid failure Replace solenoid
Motor failure Replace motor
Carriage lock not lowering correctly Check & readjust carriage lock stowing
Carriage lock switch failure Check switch adjustment & lubricate
Lift not powering OUT Lift Up switch (Out switch) Check switch adjustment & lubricate
Umbilical damaged Replace umbilical cable
Carriage solenoid failure Replace solenoid
Motor failure Replace motor
Loose carriage electrical connections Check plugs, sockets & pins
Lift not powering UP Low oil Add PLS Blue Hydraulic oil
No pump pressure Check and readjust pressure relief
Hose burst Replace
Lift Up switch (Out switch) Check switch adjustment & lubricate
Manual release left open Close manual override
Down valve stuck open (contamination) Remove / clean and replace
Low voltage Charge battery
Lift not lowering DOWN Contamination in PC Burst valves Replace PC burst valve set
Crash vales locked (cold weather) Readjust crash valve gap
Down valve not opening due to low voltage Charge battery
Down valve sticking (contamination) Remove / clean and replace
Down valve coil failure Check / replace
Problem Fault Solution
Platform Extension will not
extend
Handrails not raised up Raise up handrails into locked position
12
TROUBLESHOOTING
12.1 Troubleshooting Instructions