| ELECTRICAL SYMPTOMS |
CAUSES |
SOLUTIONS |
|
Wire to optional Personnel Restraint Bar or mercury switch in bar is faulty. |
Replace faulty wire or switch. |
| SL motor runs but platform will not lift heavier loads and sounds unusu al. (Also see Hydraulic Symptoms.) |
Motor is not receiving 3 hot phases of power, or motor is wired improperly. |
Check for single phasing of input power. If 3 hot leads have power, check motor and magnetic starter for proper wiring hookup and volt ages. |
| ECS super cold weather bypass switch does not turn motor on for continuous running with Personnel Restraint Bar lowered. |
Circuit breaker has tripped inside building, magnetic starter has tripped reset, defective power cord, or faulty bypass switch itself. |
Reset circuit breaker and magnetic starter. Unplug power cord and check plugs for loose wires, and tighten securely. Examine wire for cuts or breaks and replace if neces sary. Replace bypass switch if faulty. |
|
Incorrect motor wiring, faulty motor or magnetic starter. |
Have electrician check wiring, motor and starter for malfunction. |
| HYDROLIC SYMPTOMS |
CAUSES |
SOLUTIONS |
| Hydraulic oil flows from reservoir breather pipe occasionally. |
Oil reservoir is overtilled above 1-1/2” from top of reservoir with platform down or is on slope toward breather. |
Disregard, unless platform speed varies or movement jerks when ris ing. Check reservoir oil level for 1-1/2” from top with platform down. Place on more level surface or move breather to opposite side of SL oil reservoir. |
| Platform moves erratically in jerks as it is raised to higher levels. |
Too little oil in reservoir. |
Fill reservoir to proper level, 1-1/2” from top with Dexron III or a quality Multi-Purpose Automatic Transmis sion Fluid (Dexron/Mercron). |
| Oil leakage from hydraulic hoses. lines, or fittings. |
Loose connections, cut or damaged hoses or lines. |
Tighten fitting connection. Replace damaged hoses and fittings. |
| Remote control handle does not operate. |
Remote control cable does not operate. |
Replace cable to remote control. |
| Control Valve handle does not return to Off position after raising platform. |
Handle is binding. |
Oil all joints of control handles. Check for over-tightened bolts and nuts at pivot points, including tightness of bolt in center of remote control handle. Tie cable with 2 or more ties to railing. Replace defective cable. |
| Motor runs but SL will not lift heavy loads. (Also see Electrical Symptoms, pages 12—13.) |
Load is beyond rated capacity of SL or Overload Protection Bypass Valve on control valve is improperly adjusted. |
Check weight of load compared with capacity of Lift. If load is less than the SL capacity, adjust Bypass Valve tighter until platform lifts a load known to be within the weight capacity of SL model. |
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