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VMAC - Vehicle Mounted Air Compressors
VMAC Technical Support: 888-241-2289
VMAC Knowledge Base: www.kb.vmacair.com
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Figure 60 — Installing the AOST
(For clarity, the rear AOST mounting hardware is not shown)
Front of vehicle
(×4) 3/8 in
washers
(×4) 3/8 in × 6 in bolts
(×4) 3/8 in ×
1 1/2 in bolts
Spacer bar
(×4) 3/8 in flange
lock nuts
Tank mount
(bracket with offset
to the front)
(×8) 5/16 in
bolts
(×4) 3/8 in
lock washers
(×4) 3/8 in nuts
The top bolt on the forward tank mount will need to be installed
from the inside of the frame (Figure 60).
☐
Install the tank mounting brackets on the frame (Figure 60):
• The front tank mount bracket mounts between the radius arm mount and
the transmission crossmember.
• The rear tank mount bracket mounts just before the bend in the frame.
☐
Mount the inner portion of the tank mounting bracket clamp onto the tank
mounts (Figure 60).
☐
Using a floor jack, raise the AOST up to the mounting bracket clamps and install
the front and rear tank outer clamps (Figure 60).
☐
Leave the tank clamps finger tight so the tank can be shifted forward or back
when installing the hoses.