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

Thefrictiondrivewheelshouldbeadjustedsoittouchesthe 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

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