25
REPAIRS
PL4500
8
REPAIRS
Prior to making any repairs, make sure to perform
the Pressure Relief Procedure, section 5.5 of the
Operating Manual P/N 2407315.
8.1
INLET VALVE PUSHER
1. Use a 17 mm wrench to screw out the inlet valve pusher
(Fig. 25, item 1).
2. Replace the wiper (2) and O-ring (3).
2 3
1
8.2
INLET VALVE
1. Place a 30 mm wrench on the housing (Fig. 26, item 1).
2. Loosen the housing (1) with light blows of a hammer on
the end of the wrench.
3. Screw out the housing with the inlet valve (2) from the
paint section.
4. Remove the clasp (3) using a screwdriver.
5. Place the 30 mm wrench on the inlet valve (2). Turn out the
inlet valve carefully.
Attention
Never pry the valve out or damage to the housing
will occur.
6. Clean the valve seat (4) with a cleaning agent and brush
(ensure that no brush hairs are left behind).
7. Clean the seals (5, 6) and check for damage. Replace, if
necessary.
8. Check all the valve parts for damage. In case of visible wear
replace the inlet valve.
INSTALLATION
1. Insert the inlet valve (2) into the housing (1) and secure with
the clasp (3). Ensure that the (black) seal (5) is mounted in
the trigger housing.
2. Screw the unit from the housing and the inlet valve into
the paint section. The same (black) seal (6) has to be
mounted down inside the paint section.
3. Tighten the trigger housing with the 30 mm wrench and
tighten with three light blows of the hammer on the end
of the wrench. (Corresponds to approx. 90 Nm (67 ft.-lbs)
tightening torque).
3
5
2
6
4
1
