Liquip Sales GPI EZ-8, Owner'S Manual, Page: 7 / 12

921803-01 Rev F 7
Figure 12
• Bypass poppet binding or damaged. Re-
move the bypass poppet, spring, and O-ring
(Figure 13). Clean cavity. Inspect and replace
as necessary.
Figure 13
• System air leak. Tighten all pump fittings and
connections. Inspect suction pipe for leaks or
damage.
• Poor connections or low voltage. Make sure
electrical connections are secure. Also check
battery voltage.
• Motor running backwards due to incorrect
polarity (See Figure 14). Connect red wire to
positive (+) ungrounded side of battery.
C
orr
ect Rotatio
n
Figure 14
Strainer
Figure 10
• Suction pipe clogged, damaged, or missing.
Remove pump from tank. Inspect suction
pipe. Clean or replace, as necessary.
• Gear coverplate or O-ring damaged. Remove
and inspect the coverplate and O-ring (See
Figure 11). Replace as necessary.
Figure 11
Bypass poppet O-ring worn, missing or dirty.
Inspect the O-ring. Replace as necessary. To re-
move the o-ring, first remove the gear coverplate
and drive gears. Using an index finger, push the
poppet assembly downward through the outlet
port, and then remove the o-ring using an o-ring
puller (See Figure 12).