Hellwig Compressor 4880 - Manual (Page 6)

559-734-7451 800-367-5480 FAX 559-734-7460
4. Follow plumbing and wiring diagram for connection of leveling valve, compressor, and
relay. Take care when routing air and electrical lines that they will not be crimped or
chafed during installation or use. Deviation from the electrical diagram and failure to use
an inline fuse holder (supplied) will void warranty. DO NOT install fuse in inline fuse
holder until all connections and circuits are verified to be completed correctly.
5. After all connections have been verified, install fuse in inline fuse holder, apply park
brake and start engine with shifter in park or neutral. Due to the amperage draw of the
compressor, failure to turn engine on during initial startup may drain the battery enough to
require a jump start.
6. Test system by adding air to air springs. Disconnect linkage from arm and rotate arm
up to fill air springs. Check all connections with soapy water for leaks. After the integ-
rity of the system is verified, reconnect linkage to valve. A MINIMUM OF 5-10 PSI
MUST BE MAINTAINED IN AIR SPRINGS AFTER INSTALLATION FOR WAR-
RANTY TO BE VALID. FAILURE TO KEEP MINIMUM PRESSURE IN AIR
SPRINGS WILL VOID WARRANTY.
3. Install axle brackets as shown in diagram and photo above. Care must be taken to in-
stall linkage so that it will not bind in use and that the leveling valve arm will not contact
any other components during use. Rotate valve and confirm that it will rotate freely and
without interference. Measure the axle to bump stop clearance and add 1-1/2” to this di-
mension. With the valve centered, measure from the top of the linkage to the bottom of
the bed. This dimension must be greater than the bump stop dimension obtained earlier.
Hellwig Products Co. will not warrant any components which are bent or damaged due to
contact with other vehicle components. Due to the universal nature of this kit, it is up to
the installer to confirm that the linkage, valve, and brackets will perform correctly and
without interference.
Connect axle
brackets with stud
pin
Attach axle brackets to axle us-
ing rear cover bolts. Brackets
are slotted to accommodate vari-
ous axles and to allow best
placement of stud pin.
4880 ( R-4880) 03/09/07