Vmac RAPTAIR-G30, Service Manual

Page: 49 / 96

VMAC
– Vehicle Mounted Air Compressors
Toll Free: 1-888-241-2289
Fax: 1-250-740-3201
47
Inspecting the Pressure Relief Valve

Read the
“Maintenance and Repair” safety section
before working on the system.

Relief valve failure can result in air/oil tank over-
pressurization leading to system failure or
rupture.
The Pressure Relief Valve is a regular service item, and must be
replaced every 400 hours or one year, whichever interval occurs first.
Inspect the pressure relief valve for signs of corrosion or loss of
functionality. To test the pressure relief valve functionality:
1) Visually inspect the valve and ensure it is not corroded and that the
vent holes are not plugged.
2) Turn the system on and bring it up to operating pressure (factory
setting 150 psi). Ensure that no air leaks out of the valve.
3) If the pressure relief valve is showing loss of functionality, contact a
local authorized VMAC dealer for a replacement part.
A replacement pressure relief valve is included with the
VMAC 400 hour service kit.
Figure 34 - Pressure relief valve (Shroud removed for clarity)