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V25/VX30G/VSK25/VSK30G Vacuum Excavators
Troubleshooting 125-1
Section 125:
Troubleshooting
E
NGINE
S
YSTEM
Refer to the Engine Operation Manual, supplied with each machine, for troubleshooting procedures.
V
ACUUM
E
XCAVATOR
Symptom
Cause
Solution
Vacuum will not build
within tank.
Rear door on tank not sealed
Clean door seal. Close door completely.
Suction line plugged
Unplug suction line.
Float ball stuck against the seal
Remove float ball from seal.
Air leaks
Check for air leaks in lines between tank and
pump.
Vacuum pump malfunctioning
Check vacuum pump. Refer to pump owner’s
manual furnished with the machine for servicing
information.
Vacuum gauge malfunctioning
Replace gauge if it is giving a faulty reading.
Summary of Contents for McLaughlin V25
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