Graco RTX 1500 Repair And Parts Manual page 25

Relief Valve and Flow Sensor Manifold
For 120 V sprayer use Relief Valve Replacement Kit
287325.
For 230 V sprayer use Relief Valve Replacement Kit
287350.
Disassembly
First read and follow instructions in the Before perform-
ing any service on sprayer section, page 9.
Then remove hopper, front and back covers, page 9.
1. Remove air line to
regulator.
2. Remove air line from
cooler to manifold.
3. Disconnect wires to
Relief Valve. Pay attention to their location to insure
they are reattached correctly.
4. Remove 2 nuts secur-
ing Relief Valve to
sprayer.
310645L
ti4423a
ti4418a
Relief Valve and Flow Sensor Manifold
5. Remove Relief Valve
from sprayer frame.
Reassembly
1. Position new relief valve from Kit in back of sprayer.
2. Replace and tighten screws.
3. Reattach wires to Relief Valve.
4. Reattach air line from cooler to manifold.
5. Reattach air line to regulator.Replace RotoFlex HD
Pump and hose extension, page 12.
6. Replace front cover and hopper. See Removing and
Replacing Hopper, Front and Back Cover, page 9.
ti4419a
25