Ford Stripped Chassis F53 (Class A Motorhome)
L6559
8
10 INSTALL AIR LINE
PLEASE NOTE: This kit contains push-to-connect fittings
;
using
scissors or wire cutters to cut the nylon airline will distort the line
and cause the connection to leak. THE AIRLINE MUST BE CUT OFF
SQUARELY WITH THE NYLON HOSE CUTTER PROVIDED IN THIS KIT
OR A SHARP UTILITY KNIFE
Provided in air spring kit are two fill valves. The most common place
to install is in place of license plate fasteners. Alternatively, two 5/16”
holes can be drilled in a convenient location.
Cut air line assembly into two equal lengths with hose cutter.
Install one air line, route the nylon air line to an air spring fitting and
cut the hose.
Moisten the end of the air line prior to inserting it into the fitting and
push it in until it stops. Repeat with the other fill valve.
Secure airlines using the tie-straps, away from moving items and heat
sources.
Place a 5 ⁄16” nut on the air valve. Leave enough of the inflation valve
in front of the nut to extend through the hole, install a flat washer, and
5 ⁄16” nut and cap (reference Figure 10 for assembly).
There should be enough valve exposed after installation—
approximately ½”—to easily apply a pressure gauge or an air chuck.
If an in-cab inflation kit is being installed, follow
the instructions provided with that kit now.
11 CHECK SYSTEM FOR LEAKS
Inflate both air springs to 90 psi and then use a mixture of dish soap
and water on all air line connections to detect any air leaks.
Large, expanding bubbles indicate a leak (as shown in Figure 11).
Repair as necessary and retest.
Inflate air springs to a predetermined value and on following day
recheck pressure.
If one or both of air springs have lost pressure, an air leak is present.
Leak must be repaired, and then retested until no leaks exist.
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