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WARNING:
Always stop engine,
disconnect spark plug wire, and move it
away from spark plug before performing any
adjustments or repairs.
Tires
See sidewall of tire for recommended pressure.
Maximum tire pressure under any circumstance
is 30 p.s.L Equal tire pressure should be
maintained on all tires.
WARNING: Excessive pressure (over 30
p.s.L) when seating beads may cause tire/
rim assembly to burst with force sufficientto
cause serious injury,
Flexible Pump Coupler
The flexible pump coupler is a nylon "spider" insert,
located between the pump and engine shaft. Over a
period of time, the coupler willharden and
deteriorate. Replace the coupler ff you detect
vibration or noise in the area between the engine and
the pump. If the coupler fails completely, you will
experience a loss of power.
WARNING: Never hit the engine shaft in
any manner, as a blow willcause permanent
damage to the engine.
IMPORTANT: If you do not have the right toolsorate
otherwise uncomfortable with the procedure, contact
Sears service center.
When replacing the flexible pump coupler, proceed
as follows. Follow the instructions carefully as the
alignment is critical.
•
Disconnect the spark plug wire, and secure it
away from the spark plug.
•
Drain gasoline from fuel tank or place a piece of
plastic film underneath the gas cap to prevent
gasoline from leaking.
•
Using a 1/2 inch socket with an extension,
remove the three bolts securing the engine to
the engine mounting bracket. The three bolts
can be found under the engine mounting
bracket.
•
Carefully lift engine oft mounting bracket and set
aside on a sturdy, level surface.
•
Remove the nylon spider insert from the pump
sha ft. You may need a pair of needle nose
pliers to grasp the insert.
•
Place a new "spider"insert into the pump coupling
halt See Figure 16,1. Make sure the key is on the
pump shaft. The key way in the lower coupling
haft has to fit over the key on the pump shaft.
•
Re-seat the engine making sure to align the
pump and engine coupling halves. There must
be space between end of the engine and the
coupling half. See Figure 16,2.
Upper
Figure 16
NOTE: The pump coupling haft can be rotated by
hand to aid in alignmenL ff the two parts are not
aligned the unit willnot operate properly and damage
could occur.
Set .035-.060 inch clearance between the
coupling halves by sliding a matchbox cover
between the jaws of the upper and the lower
coupling halves.
NOTE: Before securing the set screw, apply some
Loctite
TM on
the
threads of the
screw.
•
Tighten the set screw to 78 inch-pounds torque.
•
Secure engine with three bolts removed earlier.
Torque bolts to 200 to 450 inch-pounds.
•
Reattach spark plug wire to spark plug. Be sure
to remove plastic film from under gas cap ff
necessary.
Beam
&
Splitting Wedge
The wedge plate is subject to normal wear.
Periodically adjust the bolts on the wedge plate
making sure that the wedge moves freely, Also make
sure that no excess space exists between the wedge
plate and the beam.
17
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