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Idiomas disponibles
Idiomas disponibles
Operating Instructions and Parts Manual
Maintenance and
Repair Instructions
(continued)
SPARK PLUG
To remove the spark plug:
1. Ensure the engine is off and unit is
cool.
2. Grasp the spark plug boot firmly
and remove from the spark plug.
3. Remove spark plug using a 5/8"
(16mm) deep-well socket or special
spark plug socket.
To install the spark plug:
1. Inspect spark plug for damage,
replace if necessary. Use Champion
RZ7C or equivalent.
2. Verify / adjust spark plug gap. Gap
= .025" (.635mm) (See Figure 11)
Gap = .025" (.635mm)
Figure 11
3. Carefully insert the spark plug into
the engine head. Tighten the spark
plug by hand to avoid damaging
the engine. (Plug should turn 6-8
times before becoming hand tight.)
4. Torque plug to 105 to 130 in-lbs
(12 to 15 N-m)
5. Connect spark plug boot.
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SHAFT SEAL REPLACEMENT
To remove the shaft seal assembly
1. Turn off pump, drain the pump and
remove the spark plug wire
2. Remove the inlet cover.
3. Using an 11/32" socket, remove the
impeller by turning it counter-
clockwise. It may be necessary to
quickly turn the impeller counter-
clockwise to keep the engine from
turning over.
4. One half of the shaft seal is located
inside the impeller hub. This half
(Seal Seat and Rubber Seat Ring)
can be pried out using a small flat
screwdriver (See Figure 12).
5. Remove the diffuser.
6. Remove the engine from the pump
body by removing the four engine
mounting bolts.
7. The other half of the seal (Seal
Head) is located in the pump body.
Use a 1" diameter rod from the
engine side of the pump body to
press the seal out (See Figure 13).
Gap
Small flat
screwdriver
Impeller
Figure 12
To replace the shaft seal assembly
1. Before handling new shaft seal
2. To replace the seal head into the
3. Lightly coat the rubber cup
4. Place the impeller face down on
6
parts, wipe hands and tools clean.
Any oil or dirt on the seal may
cause the seal to leak and will
reduce the life of the seal.
pump body, set the pump body
with the engine side down on a
solid surface. Press the seal into the
hole with a section of 1 1/4" ID pipe
or a 1 1/16" [27mm] socket. Do not
press on carbon section as it is
easily damaged (See Figure 14).
enclosing the ceramic seat with
soapy water. Do not use oil as it
will damage the rubber cup.
a solid surface. Place the Seal Seat
and Rubber Seat Ring in the back
of the impeller. Place cardboard
washer between a 3/4" pipe or
socket and push seal in place.
Do not use a hammer to install,
as ceramic face is easily damaged
(See Figure 15).
Seal seat
Rubber seat ring
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