ADP MAINTENANCE
INSTRUCTIONS
WARNING: Removethe machine power cord from the electrical source before making any adjustments or repairs.
ONLY QUALIFIED MAINTENANCE PER- SONNEL ARE TO PERFORM REPAIRS.
HANDLE LOCKADJUSTMENT
The black knob on the opposite end of the rod from the adjusting lever controls the tightness of the adjusting knob.
VAC SHOE
Remove the screws holding the parallel arms to take off the vac shoe for repairs or replacement.
When reinstalling the vac shoe be sure that the wave washers are floating and not pinched.
BRUSH ASSEMBLY AND BEARINGS
1.Remove belt guard and roll belt off motor pulley.
2.Tilt machine back on handle and remove brush pulley guard.
3.Remove shaft retaining screws and washers from each end of the brush shaft.
4.Replace brush or bearings as required.
TRANSPORT WHEELS
Remove screw and hub cap to service wheel.
Before putting wheel back on clean axle and apply a light coat of silicon lubricant.
SUPPORT ROLLER
1.Tilt machine back on handle.
2.Loosen lock nuts on each end of roller axle and remove assembly.
3.Replace and repair as necessary.
4.Clean axle and apply a light coat of silicon lubricant before reassembling.
SWITCH CONTROL PANEL
The switches and circuit breakers are ac- cessed through the panel located on the bot- tom of the control panel.
CAUTION:
After making repairs use the wiring diagram located on the access panel or in this manual to be sure all wire leads are properly con- nected.
ACCESSING THE CHASSIS
1.Drain both tanks completely.
2.Remove dome and recovery tank.
3.Tilt machine back on handle and remove
(4)nuts holding solution tank to chassis.
4.Return machine to upright position.
5.Raise tank and remove hose from pump inlet and set solution tank aside.
PUMP
1.Access chassis as described above.
2.Disconnect wire leads.
3.Remove (4) screws attaching pump to chassis.
4.Disconnect hoses and remove pump.
Refer to the pump assembly drawing for in- ternal parts and repairs.
CAUTION: Do not
WARNING: The internal solution hoses are encased in an outer hose to protect the electrical component parts in the un- likely event a solution hose should rup- ture. Replace hoses exactly as originally supplied.
98198 7/l/97
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