Maintenance, Head Position System - Clarke Encore S28 Operator's Manual

MAINTENANCE
Adjusting Brush Head Position Switch: (See figure 34)
1.Turn "ON" the key switch.
2. Start with the brush head up/down switch in the "Up"
position and the brush pressure knob set to minimum,
fully counter clockwise. This should cause the brush
head to be in the full "Up" position.
3. Install the proper brushes or pads and pad drivers for
the machine.
4. Leave the brush pressure knob set to minimum, fully
counter clockwise. Switch the brush head up/down
switch to the "Down" position. This should cause the
brush head to travel down to the floor until the brush
position switch (47422A) is closed. At this time the
brush head actuator will stop running down.
5. Check at the front of the machine to see if the brushes
or pads are completely flat on the floor. The screw, that
goes through the brush head actuator tube (69188A),
should be at the top of the 1.25 inch slot in the tube. If
the brushes or pads are not on the floor, or the screw
is not at the top of the slot, the brush position switch
(47422A) needs to be loosened and moved up or down
.
in the slot on the switch mount bracket (65972A).
Retighten the brush position switch.
6.Keep the brush pressure knob set to minimum, fully
counter clockwise. The brush head will need to be
raised and lowered again with the brush up/down
switch. Check to see if the adjustment put the brushes
or pads on the floor and kept the screw at the top of the
tube. If no, repeat step #5 until this step is completely
accomplished.
Replacing a Defective Brush Head Hall Affect Sensor
(L Series only)(See figure 35)
1.Remove the brush head actuator assembly from the
machine.
2. Loosen the locking nut on the brush head hall affect
sensor at the top of the brush head actuator.
3. Unscrew the brush head hall affect sensor (Part Num-
ber 46742A) from the top of the brush head actuator.
4. Screw in the new brush head hall affect sensor into the
top of the brush head actuator until it touches the metal
disk on the motor gear. Unscrew the brush head hall
affect sensor from the top of the brush head actuator
three (3) complete turns.
5. Using the supplied jam nut, lock the brush head hall
affect sensor down using loctite thread locker.
6.Reinstall the brush head actuator assembly on the
machine.
Clarke ®
Operator's Manual - Encore S28/L28/S33/L33/S38/L38
Figure #34
Figure #35
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