Section A: Trouble Shooting Continued
PowerMate
®
L1/L2 Series Model
Repair Manual
Machine is Fully Open and Will Not Close
A. If the drive screw just spins, the ballnut locknut is too loose. See Ballnut Locknut Adjustment.
B. If the drive screw does not spin, the ballnut locknut is too tight. See Ballnut Locknut Adjustment.
Urethane Bumper is Squashed
A. Ballnut locknut is too tight. See Ballnut Locknut Adjustment.
B. Check the spring washer in the override bearing kit for fl atness. If the spring washer has fl attened, see Override
Bearing Assembly Replacement.
Machine Operates Intermittently
A. If the machine is used quite extensively and or is older, the problem will more that likely be motor brushes.
See Motor Brush Replacement.
B. If machine is new, wiggle check and visually inspect for loose pinched or broken wiring, also,
see Relay and Solenoids.
Load Drifts Down
A. Check Brake Assembly Kit for sheared or misshapen roll pin and or damaged spring. Replace Brake Assembly
Kit if necessary. See Brake Assembly Replacement.
Machine Makes a Grinding Noise When Opening & Closing
A. On a M-Series the inner frame is probably bent. The proper measurement on the inner frame will be 14” from the
outside of the frame. If a minimum 16” C or Bessey clamp is available, repair can be completed by the customer.
The bend is usually at or around the battery box. Open the machine enough to attach the clamp to where the
battery box is welded. Close the clamp to 13.5”. The frame will spring back to around 14”. If clamp is not
available, return to L P for repair.
Brake Cap Gets Hot During Normal Use
A. Check Brake Assembly Kit for sheared or misshapen roll pin and or damaged spring. Replace Brake Assembly
Kit if necessary. See Brake Assembly Replacement.
Wheel Brakes Flip Over During Normal Use
A. Check and replace green urethane stop if necessary.
B. Coupling on brake shoe needs adjustment. Bend coupling slightly towards the wheel axle.
See diagram for details.
Charging System
A. Machine will not accept a charge.
1. Check fuse and replace with 30A automotive fuse if necessary.
2. Wiggle and visual test of wiring for loose, pinched or broken wires.
3. Check wiring inside of charger plug. Refer to the back of the charger for positive and negative
wire colors. The positive wire will go the large prong and the negative to the center.
4. Check the battery(s). If Amps are too low, battery will not charge. See Installation of Sealed
Batteries Diagram.
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