Table of Contents
Advertisement
Pad Installation
The red emergency disconnect button and the key switch must be in the OFF position before installation and the pad driver
assembly in the RAISED position. Remove center cup locking device by gripping on outer edges and turning clockwise.
NOTE: Center cup cannot be pulled out; it must be unscrewed. After removing used pad, place new pad on pad driver
assembly using outer fl ange of pad driver to center the pad. Push centering locking cup through the pad and into the pad
driver assembly. The ratchet teeth on the center cup will engage into the pad driver assembly and should be pushed in as
far as possible. If further tightening is needed, rotate the center-locking cup counter-clockwise
Pad Pressure Adjustments
The pad pressure adjust knob is located on the top of the control console. Counter-clockwise rotation increases pad
pressure, the opposite rotation decreases. Diff erent fl oors, conditions, and pads produce carrying pad load conditions.
Ideal burnishing conditions are maintained while the operating range meter remains in the Green Zone. If the meter reads
in the Red Zone decrease the pad pressure. When the machine is operated in the Red Zone for a long period of time
motor overload will occur and the 70-amp circuit breaker for the motor will trip. If the motor circuit trips:
1.
Check pad condition.
2.
Decrease pad pressure.
3.
Reset circuit breaker.
Circuit Breaker Protection
70 amp circuit breaker protects pad driver motor from excessive overload conditions. 3.0 amp circuit breaker protects
control circuits against possible electrical shorts. If either circuit breaker trips, fi rst determine the cause and correct the
condition before resetting the breakers.
Carbon Brush Replacement
Design life of carbon brushes is between 1800-2000 hours. Replace brushes if worn to 3/8" or less, broken, or chipped. All
carbon brushes should be replaced when motor is serviced. Four (4) are required, P/N 572003. Red indicator on control
panel (above Emergency Disconnect Button, below the Dashboard) will glow when carbon brush service is required.
Carbon Brush Service
1.
Disconnect batteries from machine.
2.
Remove two screws that hold dust control housing and motor cover to motor.
3.
Blow out top of motor with air line.
4.
Loosen screw and remove carbon brush lead.
5.
Slide brush spring off the back of carbon brush and remove brush.
6.
Reverse order for installation of new carbon brushes.
Lumina 20 Traction Drive Battery Burnisher
Page 8
Advertisement
Table of Contents
