American Sanders 3DS Orbital Sander - Manual (Page 12)

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-12- Clarke ® American Sanders Operator’s Manual (EN) - 3DS
Troubleshooting
Problem Cause Action
Motor will not start No Power Check power supply and
connections
Defective switch / bad connection Contact an authorized dealer
Motor fails to start / runs sluggish Low voltage from excessive length Use a 12 Ga. extension cord, not to
or undersized extension cord. exceed 40’ in length.
Defective start capacitor Contact an authorized dealer
Defective start switch Contact an authorized dealer
Defective start/run capacitor Contact an authorized dealer
Defective motor, low voltage Contact an authorized dealer
Fuse / Circuit Breaker repeatedly Low voltage Eliminate extension cord.
trips. Locate power source closer to work
site. Have voltage checked by a
qualified electrician.
Bad connection Contact an authorized dealer
Defective motor Contact an authorized dealer
Machine “hops” during operation Head pressure adjustment Adjust the Head pressure bolt to
not set to proper pressure. suite.
Bad/worn sanding pad Replace faulty pad.
Uneven pads. Replace uneven pads.
Sandpaper / screen torn, worn Replace faulty sandpaper/screen or
or improperly installed. install properly.
Machine pulls to the right Head pressure adjustment Loosen the head pressure
during operation. set too tight. adjustment. See Figure 17, page 8
Machine fails to properly Paper bag is full or not Replace paper bag in vacuum
contain dust. properly seated on vacuum securing properly on vacuum horn.
inlet horn.
Cloth filter is clogged Remove cloth filter and clean by
blowing with high pressure air.
Machine pushes to rear when Eccentric spacers on hand Adjust eccentrics to match “tick”
running. knobs improperly set. marks on frame with eccentric
hole toward front of machine.
NOTE: After adjustment both
casters should turn with the same
amount of pressure.