14 PowrCoat
GB
Maintenance
6.2 Maintaining the Filter Assembly
Clean the lter regularly. Dirty or clogged lters can greatly reduce
ltering ability and cause a number of system problems including
poor spray patterns, clogged spray tips, etc.
Cleaning (Fig. 17)
1. Follow the “Pressure Relief Procedure” found in the Operation
section of this manual.
2. Remove lter cap assembly (1).
3. Pull the lter element (3) with ball straight (2) out of the lter
body (4).
4. Clean inside the lter body, lter element with ball, and lter
cap assembly using the appropriate solvent.
i
Use care in handling parts as dirt, debris, scratches,
or nicks may prevent o-rings or gaskets from sealing.
This lter element lters from the inside out. Be sure
to clean the lter element thoroughly on the inside.
Soak in solvent to loosen hardened paint or replace.
1
2
3
5
6
4
Inspection (Fig. 17)
Inspect all parts of the lter assembly before reassembly.
1. Inspect the ball inside the lter element. If the ball has
pressure cuts or scratches, replace the lter element.
2. Inspect the two PTFE gaskets (5, 6) for deformity, nicks, or
cuts. Replace, if needed.
Reassembly (Fig. 17)
After cleaning and inspecting all parts, reassemble the lter.
1. Place the lter element (3) with ball (2) into the lter body (4).
The top and bottom of the lter element with ball
are identical.
2. Place the thin PTFE gasket (6) onto the step at the top of the
lter body (4).
3. Place the thick PTFE gasket (5) onto the top of the thin gasket
(6).
4. Tighten the lter cap assembly (1) onto the lter body (4).
6.3 Air Motor Maintenance
Air motors require a normal maintenance and service inspection
at 1500 hours service. Service procedure includes replacement of
motor service kit, minor. It is suggested that one motor service kit,
major (which includes the minor kit) be kept on hand for normal
maintenance and emergency repairs. Check the individual model’s
specications for correct part numbers.
6.4 Maintaining the Fluid Pump
If the sprayer is going to be out of service for an extended period of
time,itisrecommendedthatfollowingcleanup,LiquidShield™be
introduced as a preservative. Packings may tend to dry out from lack
of use. This is particularly true of the upper packing set for which
upperpackinglubricantPistonLube(P/N314-480)isrecommended
in normal usage.
If the sprayer has been out of service for an extended period of time,
it may be necessary to prime the pump with solvent. It is extremely
important that the threads on the siphon hose coupling are properly
sealed. Any air leakage will produce erratic operation of the sprayer
and may damage the system. The up and the down strokes should
be approximately equal in time (one should not be faster than the
other). A fast up or down stroke may indicate air in the system or
malfunctioning valve or seats (see the Troubleshooting section).
