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PAGE 20 — MVH-120GH — OPERATION AND PARTS MANUAL — REV. #3 (10/24/07)
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Engine Oil Replacement:
1. Replace engine oil, first in 20 hours of operation and every
100 hours afterwards.
2. Oil may be drained more easily when it is warm after
operation (For more details, see separate HONDA Owner's
Manual).
Air Filter
1. The air filter element should be cleaned because a clogged
air cleaner can cause poor engine starting, lack of power
and shorten engine life substantially.
2. To clean or replace air filter, loosen the wing nut on the air
filter housing (Figure 16). Remove the cover and take out
air filter cartridge. If only cleaning of the air filter is desired,
blow through the air filter cartridge from the inside, moving a
jet of dry compressed air up and down until all dust is
removed.
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Reinstalling the V-belt
Engage V-belt to lower vibrator pulley and push the V-belt to left
side of upper clutch. In the same manner as in removal, rotate
offset wrench clockwise so that the V-belt goes back on.
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Replacing the V-belt
Remove the upper and lower belt covers. Engage an offset
wrench (13 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.
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Checking Clutch
Check the clutch simultaneously with V-belt checking. With belt
removed, visually check outer drum of the clutch for seizure and
"V" groove for wear or damage. Clean the "V" groove as necessary.
Regularly check the lining or shoe for wear. If the shoe is worn,
power transmission becomes deficient and slipping will result.
MVH-120GH — MAINTENANCE
Vibrator Oil Level Check
1. In every 300 hours of operation, with the machine positioned
horizontally, remove vibrator oil level check plug (Figure 5)
off vibrator (14 mm wrench) and see if oil is up to filler port.
Be sure to clean area around check hole to prevent dirt and
dust from entering.
2. In every 300 hours of operation, replace oil (capacity 400 cc).
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.
*
Use engine oil 10W-30 for this lubrication.
Checking and Replacing the V-Belt and Clutch
1. After 200 hours of operation, remove the upper belt cover to
check the V-belt tension. Tension is proper if the belt bends
about 10 mm when depressed strongly with finger between
shafts. Loose or worn V-belts reduce power transmission
efficiency, causing weak compaction and reducing the life
of the belt itself.
Figure 16. Air Filter
CAUTION
NEVER attempt to check the V-belt with the engine run-
ning. Severe injury can occur if your hand gets caught
between the V-belt and the clutch. Always use safety
gloves.
Whenever the compactor's vibration becomes weak or lost
during normal operation regardless of operation hours,
check the V-belt and clutch immediately.
CAUTION
Always clean the area around the vibrator oil level check
hole before removing oil check plug. This will prevent dirt
and debris from entering the system.
CAUTION