Accessories
14 3A3951A
Pump Packing O-ring
Replacement
Remove pump packing assembly (25) and replace
O-ring (21) with new one.
1. Remove pump housing (1) from sprayer. See Pres-
sure Control Replacement, on page 9 for pump
removal.
2. Insert hex end of pump into hex tool in the sprayer
frame and turn counter-clockwise to loosen assem-
bly. Location of the hex varies depending on the
sprayer.
3. Remove entire packing assembly (25) from pump
housing (21) including the packing spring (16).
4. Remove and replace O-ring (21).
5. While holding the pump body upside down start
threading the new packing assembly in by hand.
6. Insert hex end of pump into hex tool in the sprayer
frame and torque. See Pump Assembly Drawing
page 8 for torque.
7. Install pump housing (1) into sprayer. See Pressure
Control Replacement, on page 9 for pump installa-
tion.
Suction Tube Replacement
1. Remove suction tube (26 or 37) from pump inlet.
2. Remove clamp and strainer from suction tube.
3. Locate new suction tube (26 or 37).
4. Install strainer.
5. Slide clamp over the other end of the suction tube.
6. Install suction tube onto pump inlet and secure with
clamp.
Assembly Verification
After assembly is complete, follow the Setup and Start
Up instructions in your Owners/Operation manual to ver-
ify proper sprayer operation.
NOTICE
Be careful not to lose the packing spring that is
installed on the pump rod. Operation without the pack-
ing spring will cause early pump failure.
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All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
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2ULJLQDOLQVWUXFWLRQV This manual contains English. MM 3A3951
Graco Headquarters: Minneapolis/International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2016, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision A - March 2016
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