Clarke ALTO SPS-28 Parts And Service Manual - Page 3
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Drive Belts
WARNING: To prevent injury always stop the
engine or motor before doing any
maintenance or repairs to this ma-
chine.
The drive belts are automatically tensioned by a spring-
loaded idler wheel. (See Fig. 9)
1.
Remove the idler pulley tension spring.
2.
Slip the belt off the pulley.
3.
Install a new belt.
4.
Assemble idler tension spring.
5.
Align pulleys and belts if necessary.
Main Broom Adjustment
The main broom should be periodically readjusted as
needed to compensate for wear. Use the broom-adjusting
lever to accomplish this. rotate counterclockwise to lower
and clockwise to raise. (See Fig. 2, page 6)
Side Broom Belt Adjustment
To increase tension on the side broom belt, loosen the two
(2) socket set screws. Push the split clamp forward on the
tubular frame until belt is sufficiently tight to drive broom
without slipping. Tighten clamp screws.
Friction Drive Wheel
The friction drive wheel should be adjusted so it touches the
mating drive wheel. The machine should NOT creep or
move when the operator handle is in neutral "UP" position.
(See Fig. 10)
ENGINE SPEED ADJUSTMENT (Model 28G)
The engine speed (rpm) is governor-controlled and preset
at the factory at 2150 rpm (no load). Should it be necessary
to check or readjust this setting, use a good strobe
tachometer and adjust the governor rod threaded end to
maintain 2150 rpm (no load). Be certain all brooms are
raised for this adjustment.
Installation of new Main Brush
The main brush is made up of five (5) bristle strips, installed
and retained on the core by three (3) screws and washers
for each strip. Do not change (1) new bristle strip with (4)
worn strips.
Remove the three screws and washers and the bristle strip
retained by them. Install the new strip and assemble the
retaining screws and washers. Be sure to install the "V" of
each strip in the same relation to the core as its companion
strips. (See Fig. 11)
CLARKE TECHNOLOGY Model SPS-28 Space Sweeper Operator's Manual
Fig. 9
Fig. 10
Fig. 11
Page 13