Giant GP7122 Pressure Washer User Manual


 
NOTE: Always take time to lubricate all metal and non-metal parts with a light film of oil before reassembling. This
step will help ensure proper fit, at the same time protecting the pump non-metal parts (elastomers) from cutting and scoring.
GP7122 REPAIR INSTRUCTIONS
1) Lossen and remove screws
(58C) with a 24mm socket
wrench.
2) Take plugs (58) out of valve
casing (50) by tightening
screws (58C) against valve
casing with two screws.
4) Take out valve assemblies
(52 & 51) using either tool
(part #07704) or a stud bolt.
3) Remove the compression
spring (57) O-Ring (58A)
and support ring (58B).
58B 58A 57
5) Valve seats (51C and 52C) are pressed out of spacer pipe (51F)
by hitting the valve plate (51D) with a socket extention.
6) Check surfaces of valve plate (51D), valve seat (51C or 52C),
o-rings (51A), and support rings (51B). Replace worn parts.
51E 51D 52C 51A 51B
51C (Suction)
52C (Discharge)
7
TO CHECK VALVES