Handbook

31
SERVICE:
1. If the drive jet is obstructed with
debris, remove the feed
pipe/timer blank assembly.
Clear the jet with a paper clip.
After clearing the jet, run water
through the jet to flush the
debris out the water manage-
ment system inlet.
2. Reinstall the feed pipe/timer blank assembly and retest.
3. Remove the feed pipe/timer blank assembly and reassemble the cleaner.
(Refer to DRIVE TRAIN REMOVAL AND REPLACEMENT reassembly
steps on page 35.)
F. In-li ne B ack- up Va lves
380 - Part #G-52; 360 - Part #9-100-1200
(For 380 cleaners with serial #337487 or higher and 360 cleaners with serial
#537710 or higher)
CHECK:
The back-up jet should cycle on
and off. It should stay off longer
than it stays on. There should be
no spray from around the back-up
jet. If so, check the housing for
cracks or a damaged o-ring.
SERVICE:
If the back-up valve does not cycle
properly, check the mech anism
for debris:
1. Unscrew the back-up valve
collar and pull apart the back-
up valve cases.
2. Remove the mechanism.
3. Depress the tabs on the
sides of the mechanism and
separate the mechanism.
4. Inspect the turbine for debris
and flush or clear debris
as necessary.
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5. Reassemble the mechanism making sure the valve seat is in place.
6. Replace the mechanism in the case making sure the back-up jet sits in
the jet opening at the bottom of the case.
7. Reattach the valve to the feed hose making sure the flow arrows point
toward the cleaner.
380 - Part #G-41
(For 380 cleaners with serial #225071 - 337486)
CHECK:
The back-up jet should cycle on
and off. It should stay off longer
than it stays on.
SERVICE:
If the back-up valve does not cycle
properly, check the turbine jet
for debris:
1. Remove the back-up
valve case.
2. Disconnect the mechanism
from the feed hose.
3. Remove the top housing,
teflon washer and
turbine wheel.
4. Visually check the red jet for
debris and clear it with a paper
clip. Do not allow the debris
to fall into the back-up valve.
If the jet was clogged, all
jets should be checked
for debris.
5. Reassemble the mechanism. If no debris was present, replace the
Mechanism (part #E-60) and reassemble the back-up valve.
G. In-head Back-up Timer
(For 380 cleaners with serial numbers prior to 225071, and 360
cleaners with serial numbers prior to 537710 which have not
been converted previously to an in-line back-up valve)
CHECK:
1. Turn the cleaner upside down.
2. The back-up jet should cycle on and off. It should stay off longer than it
stays on.