Graco 308791E Thermostat User Manual


 
6 308791
Maintenance
Disconnect the Gun and Air Regulator
from the Cup
1. Follow the Pressure Relief Procedure Warning
on page 4.
2. To disengage the tube grip, push down on the
outer ring of the lid elbow fitting (N), then pull the
tubing (3) out of the fitting. See Fig. 6.
3. Holding a wrench on the gun fluid inlet fitting,
disconnect the pressure cup swivel nut fitting (E).
4. Disconnect the air regulator fitting from the gun air
inlet.
5. Clean the gun as instructed in the gun manual.
CAUTION
Do not clean the air regulators in a gun washer as it
will damage the regulator diaphragm. Do not use any
cleaning method that allows solvent to enter the
regulator internally.
Remove the Cup Lid
1. Push the clamp lever (A) fully to the unclamped
position, against the yoke (B). See Fig. 6.
2. Twist the cup lid (101) counterclockwise to disen-
gage the yoke hook from the cup extended pins
(C).
3. Remove the cup lid (101).
4. Clean the cup lid (101) and cup (103).
CAUTION
When cleaning the pressure cup lid (101), avoid
prolonged exposure of the gasket (102) to solvent as
this will cause it to swell.
5. If any fluid is in the lid elbow fitting (N), flush it with
solvent but do not soak it in solvent for an
extended period.
6. If fluid is in the tubing (3) or check valve (13),
replace them. See the parts list for your cup
assembly to order parts.
102
103
A
B
101
C
Fig. 6
N
3668
3
13
E