Multiquip MVH406GH manual Checking and Replacing the V-Belt and Clutch,  Reinstalling the V-belt

Checking and Replacing the V-Belt and Clutch

1.After 200 hours of operation, remove the belt cover to check the V-belt tension (Figure 30). Tension is proper if the belt bends about 3/8”(10 mm) when depressed strongly with finger between shafts.Loose or wornV-belts reduces power transmission efficiency, causing weak compaction and reduces the life of the belt itself.

Figure 30. V-Belt Check

Replacing the V-belt

Remove the belt cover. Engage an offset wrench 3/4”(19 mm) or the like to vibrator pulley (lower) fastening bolt. Engage waste cloth or the like at midway of V-belt on the left side and while pulling it back strongly, rotate the offset wrench clockwise so that the V-belt will come off.

Reinstalling the V-belt

Engage V-belt to lower vibrator pulley and push the V-belt to left side of upper clutch and, in the same manner as in removal, rotate offset wrench clockwise so that the V-belt goes back on.

Checking Clutch

Check the clutch simultaneously with V-belt checking. With belt cover removed, check outer drum of the clutch for seizure and "V" groove for wear or damage with your eyes. Clean the "V" groove as necessary. If the shoe is worn, power transmission becomes deficient and slipping will result.

Replacing Clutch

Remove V-belt. Remove bolt at engine power output by giving a light tap with a hammer to an engaged wrench and rotate bolt counterclockwise. Remove clutch with a pulley extractor. To reinstall, reverse the procedure.

CAUTION

Wheneverthecompactor'svibrationbecomesweakorlostduring normaloperationregardlessofoperationhours,checktheV-belt and clutch immediately.

MVH-406GH—MAINTENANCE

Vibrator Oil Level Check

CAUTION

Always clean the area around the vibrator oil level check plug before removing oil check plug.This will prevent dirt and debris from entering the system.

1.In every 100 hours of operation, with the machine positioned horizontally, use a 3/4” (19 mm) wrench and remove vibrator oil level check plug (Figure 31).Visually inspect and see if vibrator oil level is up to filler port. Use engine oil 10W-30 for lubrication. Capacity of the lubrication oil is 20.3 fl.oz (600cc). Be sure to clean area around check hole to prevent dirt and dust from entering.

Figure 31. Vibrator Oil Drain and Check Plugs

DrainingVibrator Oil

1.Replace vibrator oil after first 200 hours and in every 1,000 hours of operation.

2.Position handle bar vertically (storage position).

3.Using a 14 mm wrench remove the vibrator oil drain plug (Figure 31) from the vibrating plate assembly.

For draining oil through level check hole, have the machine inclined with a sleeper or the like placed under the compaction plate on opposite side.

4.After hydraulic oil has been completely drained from machine, fill with 10W-30 motor oil to the appropriate safe operating level (Figure 31).

5.Reinstall drain plug into vibrating plate assembly.Apply seal tape or Loctite #575 to thread portion of drain plug.

Draining Hydraulic Oil

1.Disconnect the hydraulic hose (Figure 32) connected to the hydraulic oil cylinder.

MVH406GH PLATE COMPACTOR — OPERATION AND PARTS MANUAL — REV. #3 (02/04/14) — PAGE 23