Rotary 600 Series - Trouble Shooting for Authorized Maintenance Personnel

10
TROUBLE SHOOTING FOR AUTHORIZED MAINTENANCE PERSONNEL
Cause
1. Incorrectvoltagetomotor.
2. Bad wiring connections.
3. Motorupswitchburnedout.
4. Overheadlimitswitchburnedout.
5. Motorwindingsburnedout.
1. Overloading lift
2. Motorrunningonlowvoltage
3. Debrisinloweringvalve
4. Pumpsuckingair
5. Suctionstuboffpump
6. Low oil level
7. Improperreliefvalveadjustment
1. Debrisincheckvalveseat.
2. Debrisinloweringvalveseat.
3. External oil leaks.
1. Airmixedwithoil.
2. Airmixedwithoilsuction.
3. Oil return tube loose.
1. Equalizercablesoutofadjustment.
2. Liftinstalledonunleveloor.
1. Holesdrilledoversize.
2. Concreteoorthicknessorholding
strengthnotsufcient.
1. Low oil level
2. Air in hydraulic lines/cylinder
1. None
Remedy
1. Supplycorrectvoltagetomotor.
2. Repair and insulate all connections.
3. Replace switch/controls.
4. Replaceoverheadlimitswitch.
5. Replacemotor.
1. Check vehicle weight and/or balance
vehicle weight on lift
2. Supplycorrectvoltagetomotor
3. Clean lowering valve
4. Tightenallsuctionlinettings
5. Replace suction stub
6. Fill tank to proper level with ISOVG32
hydraulicoilorDexronIIIATF
7. Replacereliefvalvecartridge.
1. Clean check valve.
2. Clean lowering valve.
3. Repair external leaks.
1. ChangeoiltoDexronIIIATF
or ISOVG32.
2. Tightenallsuctionlinettings.
3. Reinstall oil return tube.
1. Adjustequalizercablestocorrect
tension.
2. Shimlifttolevelcolumns(Notto
exceed13mm).Ifover13mm,break
outoorandlevelperliftinstallation
instructions.
1. Relocate lift using new bit to drill holes.
Reference installation instructions for
properanchoringmethodandminimum
spacingrequirements.
2. Break out old concrete and re-pour
new pads for lift per lift installation
instruction.
1. FilltanktoMIN___markwith
ISOVG32hydraulicoilorDexronIIIATF.
2.Startunit,raiseliftabout610mm.Open
cylinderbleedersapproximately2
turns.Closebleederswhenuid
streams.Lowerliftandlltank.
1. None,thisisnormal.
Trouble
Motordoesnotrun.
Motorrunsbutwillnotraiselift
Lift slowly settles down.
Slowliftingspeedoroilblowingoutller
breather cap.
Lift going up unlevel.
Anchors will not stay tight.
Lift stops short of full rise or chatters.
Lockinglatchsolenoidsgetextremelyhot
when lift is being lowered.
Note: Shimthicknessof51mmispossiblebyusingoptionalshimkit#FC5393.ContactyourauthorizedRotaryrepairperson.