Pumptec PRESSURE WASHER - Manual (Page 7)

7 Version 110112
Pumptec Operating Instructions and Parts Manual PRESSURE WASHER
3. Clean the head with a rag or towel inspect for damage or
excess corrosion. If the head is damaged, do not rebuild. note
the order and orientation of repair parts prior to installation.
4. Place one O-ring support, u-cup and u-cup support ring into
bore. Verify that u-cup support ring is flush with top of u-cup.
Place guide O-ring around guide and lightly grease. Press
guide with O-ring installed into bore. Place retainer O-ring into
recessed area around top of bore.
Figure 3
5. Place vacuum seal O-ring around vacuum seal. lightly grease
O-ring and press into recess in retaining plate. Be careful to apply
even pressure and eliminate bulges in O-ring.
Figure 4
6. grease edge of retaining plate and slide into place. If large
retainer O-ring dislodges, do not slide plate, but push O-ring
back into place before sliding into place completely.
Figure 5
7. Repeat the previous steps 3-5 with the other head.
8. lightly grease the plunger with provided grease in small clear
tube. Slide plunger into one head assembly and then slide the
other head onto plunger. Place head and plunger assembly on
work surface with valves facing upward.
9. Adjust plunger slot position towards center and have slot
facing work surface. Replace all valves, O-rings and white
washers. Refer to image and manifold label to understand proper
orientation.
Figure 6
10. Place manifold on top of plunger and head assembly. It may
be necessary to move heads on plunger to have valves align
with valve pockets on manifold. Be careful to not lose the white
washers in the manifold during reassembly.
Figure 7
11. Turn assembly over and place shorter bolt and washer
assembly into heads and tighten finger tight. DO nOT tighten
completely at this time.
Figure 8
12. Install black grease from included packet into corners and
center of plunger slot as shown.
Figure 9
13. Mount pump back onto motor and tighten mounting bolts to
14 ft•lbs. of torque. Tighten head bolts to ft•lbs. of torque.