Graco InvisiPac GS35 Plug-Free, Instructions - Parts Manual

Page: 18 / 34

Repair
Replace Heater Cartridge
1. Disable gun assembly.
2. Use a Phillips screwdriver to remove the four
screws (15) and manifold cover plate (18).
3. Remove the heater cartridges (3) from the
manifold (1).
Note
Note the placement of the heaters and
lead lengths.
4. Disconnect the existing heater leads (3) from the
terminal block (5) and connect the new heater
leads. Tighten the terminal block screws. Torque
to 5-7 in-lbs (0.5-0.8 N∙m).
5. Insert the new heater cartridges (3) into the
manifold (1), placing the heater with the shorter
leads closer to the wiring port.
Note
Do not apply thermal grease to the
heater cartridge.
6. Reinstall the manifold cover plate (18).
7. Reconnect the cordset to the heated hose.
8. Reconnect the solenoid valve power connector
to the solenoid valve (9).
Replace RTD
The RTD is replaced by replacing the entire cordset.
See Replace Cordset, page 18 , for instructions.
Replace Thermal Cutoff
The thermal cutoff is replaced by replacing the
entire cordset. See Replace Cordset, page 18 , for
instructions.
Replace Cordset
See Fig 14, page 19 .
Note
There are two types of cordsets (17): 24P280
is for 100 Ohm RTD controlled guns and
24P283 is for 120 Ohm RTD controlled guns.
Ensure you have the correct cordset before
replacing. See Parts, page 22 .
1. Disable gun assembly. See
Before Beginning Repair, page 17 .
2. Use a Phillips screwdriver to remove the four
screws (15) and manifold cover plate (18).
3. Use a 2 mm Allen wrench to remove the set
screw (8) holding the cordset (17) on the manifold
(1).
4. Remove the terminal block (5) out of the manifold
(1).
5. Use a flat blade screwdriver to remove the
cordset lead (black) and thermal cutoff lead
(white) from the terminal block (5).
6. Use a Phillips screwdriver to remove the ground
lead and star washer (20) from the manifold (1).
7. Remove the RTD and thermal cutoff from the
manifold (1).
Note
If the RTD or thermal cutoff do not
easily pull out, remove the other cover
plate (19) and press out with a small
screwdriver.
8. Remove the cordset (17) from the manifold (1).
9. Install the new cordset (17) in the manifold.
Note
Ensure the cordset bushing is fully
inserted into the manifold.
10. Install set screw (8) against the cordset bushing
to secure the cordset (17) to the manifold (1).
11. Insert the cordset lead (black) and thermal cutoff
lead (white) into the terminal block. Tighten
terminal block screws. Torque to 5-7 in-lbs
(0.5-0.8 N∙m).
18 3A2805B