Graco Inc. 307-308 Pressure Washer User Manual


 
Valve Replacement
..
Mount the valve disc
(61
on the spring
(7).
See
Fig
3.
Then mount the spring in the cage recess (8). Slip thls
Make sure that the O-rings
(2
&
3)have been inserted in
assembly into the head cavities behind the valve seat
(5)
the proper places according to the diagram.
It
is Wise to
and O-rings (4). Put the valve caps
115)
over these and
grease the head O-rings to prevent them from falling
Out
install bolts (161.
during assembly.
Bolting Cylinder Head Assembly
To
Pump
Body
install the cylinder (14) head right side up on the pump
body, as shown.
17-
9"
'*Repair
Kit
Pam
Fig
3
6 307-308