PAGE 28 — MVH508GH PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (01/14/21)
TROUBLESHOOTING (COMPACTOR)
Troubleshooting (Compactor)
Symptom
Possible Problem
Solution
Travel speed low and vibration
weak.
Clutch slips?
Adjust or replace clutch.
V-belt slips?
Adjust or replace V-belt.
Excessive oil in vibrator?
Fill to correct level.
Trouble in vibrator internals?
Check vibrator assembly for any
worn or defective parts, replace any
defective parts.
Aeration in hydraulic oil for for travel
reversing system?
Purge air in hydraulic oil. (Bleed plug)
Engine speed incorrect?
Set engine speed to correct RPM.
Travels forward or backward but
unable to switch direction.
Hydraulic pump problems?
Check hydraulic pump.
Direction Control Lever installation
wrong?
Correct installation of lDirection
Control Lever.
Broken or defective oil hose?
Replace oil hose.
Aeration in hydraulic oil?
Purge air in hydraulic oil. (Bleed plug)
Excessive oil in reversing system?
Fill to correct level.
Hydraulic pump clogged with trash?
Clean valve inside hydraulic pump.
Cylinder piston bearing failure?
Check piston bearing in cylinder for
leakage.
Does not travel in forward or reverse
V-belt disengaged or slips?
Engage V-belt, adjust or replace.
Clutch slips?
Adjust clutch, replace if necessary.
Vibrator locks?
Check vibrator and correct problem.
Cylinder piston bearing failure?
Check piston bearing in cylinder for
leakage at USH packing.
Direction Control Lever operating
resistance for reverse is high.
Piston inside hydraulic pump not
moving smoothly?
Adjust or replace.
Vibrator cylinder piston does not move
smoothly
Adjust or replace.
