Pressure Switch Replacement
WARNING: Before proceeding,
follow
the
Pressure Relief
Procedure outlined on page
5.
Additionally, follow all
other warnings
to
reduce the risk
of
an injection injury,
injury
from
moving
parts
or
electric shock. Always
unplug the sprayer before servicing!
1. Remove cap screws #212 from bottom
of
filter block.
2. Remove filter block #240.
3. Remove switch cover plate #56, located near pressure
switch and disconnect two red wires from motor starter
#54.
4.
Remove screw #27 from pressure switch adjustment
knob and slide knob off.
5. Remove screw #27 located on side
of
motor housing
#31 and using a 1/8" allen wrench remove
set
screw
#57, until pressure switch #231 is able
to
slide down
through. Feed electrical wires down
at
the same time.
6. Insert
new
switch assembly #231 into housing while
carefully
working the wires into the switch box. Using
needle nose pliers, reconnect wires to
motor
starter.
7. Making sure that the switch assembly is
fully inserted,
tighten set screw
#57
with a 1/8"
aiiEm
wrench until the
switch assembly is secure. Reattach adjustment knob
#28.
8. Inspect
0-Rings
#232 and 233 on switch assembly. If
properly in place, then install filter block #240 by lining
up dowels.
Secure with screws #212.
9. Install insulator plate #55 switch plate #56.
1 O.The pressure switch is factory calibrated
so
no
adjustment is required.
Service/Replacement
of
the
Pressure Relief
Prime
Valve
WARNING: Before proceeding, follow the Pressure Relief
Procedure outlined on Page
5.
Additionally, follow all other
warnings
to
reduce the risk
of
an injection injury, injury
from moving parts
or
electric shock. Always unplug the
sprayer before servicing!
1.
Remove the Groove Pin (#226) from Bypass Valve
Handle
(#227).
2.
Remove Handle (#227) and Bypass Cam (#225).
3.
Using a wrench, loosen Bypass Housing (#218) and
unscrew.
4. Unscrew Bypass Retainer (#224) and remove Bypass
Valve
Stem (#220).
5. Inspect ball on end of Stem (#220) and
0-Ring
(#219).
Clean or replace if worn.
6.
Screw completed assembly into Filter
Block except
for
items #225, 226 and 227. Tighten
securely with wrench.
7. Install Bypass Cam (#225) over Bypass Retainer
(#224), lubricate with grease. Une up Groove Pin
on
Cam (#225) with hole on Filter Block (#207).
8.
Using Groove Pin (#226) line up Stem (#220) with hole
on Handle
(#227). Secure Handle with Groove Pin
(#226).
9.
IMPORTANT: If Handle (#227) rotates 360° check
Pin
on
Cam (#225).
23
Service I Replacement
of
Filter
WARNING:
Before proceeding, follow the Pressure Relief
Procedure outlined on Page
5.
Additionally, follow all other
warnings
to
reduce the
risk
of
an injection injury, injury
from moving parts
or
electric shock. Always unplug the
sprayer before servicing!
PUMP FILTER
1.
Unscrew Filter Housing (#202).
2. Remove Filter Cartridge (#204). Clean
or
replace.
3. Inspect 0-Ring (#206). Clean or replace.
4.
Reattach Filter Housing (#202).
Gun Filter
WARNING:
Follow all safety precautions as described in
high pressure warning section before proceeding.
If your
spray gun leaks or spits at the
tip
when
you
release the
trigger, the needle or seat
is
dirty, worn
or
damaged and
must
be
cleaned
or
replaced.
Replacement or Removal
of
Filter:
1.
First pull down on trigger safety guard and swing away
from handle.
2.
Unscrew handle from spray head.
3.
Unscrew left hand threaded* filter from spray head.
(*NOTE: Left handed thread requires turning the filter
clockwise to remove.)
4.
Screw new or cleaned
(t)
filter into the head.
(To reinstall left hand thread tum counterclockwise.)
5.
Reattach handle to head and secure safety trigger
guard.
(NOTE: If filter breaks off in the head use a
small wood screw to remove.)
Figure
19--
(t)For
more detail, part number information
and assembly drawings at larger scale, please see the LX
-
80
Professional Airless Gun Owners Manual (#313-012).
