Product Manual

5Rev. D 921422-18
Remove Pump from Tank
• Turn the pump OFF and disconnect from power.
• Turn the union ring counterclockwise to release the
inlet tting.
• Lift the pump and suction pipe straight up from the
bung adapter.
• Elevate the nozzle and hose to allow excess fuel to
drain into the tank.
• Wipe the entire system with a clean cloth.
Service O-Rings
A Wet Seal Kit contains all seals for your pump and
should be on hand when performing repairs. Old seals
may then be replaced with new seals.
In general, when inspecting O-rings, look for breaks, wear,
and signs of deterioration, such as swelling. Replace, as
necessary. Before seating, coat O-rings with light grease.
Replace Gears and Drive Key
• Turn the pump OFF and disconnect from power.
• Remove the gear coverplate. (Figure 6)
FIGURE 6
• Lift the drive key and gears from the pump. (Figure 7)
FIGURE 7
• Inspect the gears and key for wear and damage.
Replace, as necessary.
• Wipe the gear cavity with a clean cloth.
• Replace the gears. Make sure they turn freely.
• Replace the drive key.
• Make sure the gear coverplate O-ring is securely in
place. Tighten the coverplate to the housing.
Clean or Replace Bypass Poppet
• Turn the pump OFF and disconnect from power.
• Using a drive ratchet or extension, remove the pipe
plug from the top outlet port. (Figure 8)
FIGURE 8
• Remove the gear coverplate and O-ring from the
pump housing.
• Lift the drive key and two gears from the pump.
• To clean the bypass poppet:
a. With a clean cloth, wipe the poppet cavity through
the top outlet port.
b. Push down on the poppet until the poppet O-ring
is exposed inside the housing. (Figure 9)
FIGURE 9
c. Using a clean cloth, rotate the poppet and clean
it thoroughly.
• To remove or replace the bypass poppet:
a. As above, push down on the poppet until the
O-ring is exposed.
b. Remove the O-ring with a small screwdriver or
similar tool. Take care not to damage the poppet
or O-ring. (Figure 10)
FIGURE 10