Vmac VR150 - VMAC System Adjustment and Oil Level Check; Adjusting VMAC System Airflow; Final Oil Level Check Procedure

VMAC – Vehicle Mounted Air Compressors
Toll Free: 1-800-738-8622 Local: 1-250-740-3200
Fax: 1-250-740-3201
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2. Pour oil into the oil fill hole on the inlet control valve using a
funnel. It is important not to overfill the system. Overfilling the
system with oil can flood the sight glass window and make the
system appear empty.
3. As you add oil, turn the compressor clutch clockwise with a
ratchet and socket using the hex head cap screw at the center of
the compressor clutch.
4. Allow five minutes for the oil to drain into the tank, then check the
sight-glass on the tank to ensure that the correct oil level is
attained.
5. Install the fill plug and tighten it securely.
MAX
ADD
ADD
MAX
UP
UP
Sight Glass
Window
Drain Plug
VR70 V 150R
You must use VMAC certified and approved synthetic
compressor oil. Failure to use this oil will result in
damage to the compressor and may void your warranty.
Adjusting the System
If insufficient airflow is developed under high demand conditions,
check engine RPM.
When the inlet control valve is wide open, approximately thirty
engine revolutions are required to produce one cubic foot of air flow
from the VR70 compressor and fifteen for the VR150 compressor.