ENGINE
2-35
D569-W02 May-2003
569W250A
569W249A
(1) Fan Belt (6) Oil Gauge
(2) Hour Meter Unit (7) Exhaust Manifold
(3) Oil Filter (8) Oil Pressure
Switch
(4) Oil Filter Flange (9) Starter
(5) Alternator
B. EXTERNAL COMPONENTS
a. Checking and Adjusting
1) Fan belt
Measure the deflection, depressing the belt halfway
between the fan drive pulley and the alternator pulley at
98 N (10 kgf, 22 lbs) of force.
If the deflection is not between the factory specifications,
loosen the bolts and nuts, and relocate the alternator
to adjust.
If the belt is damaged or worn (see figure), replace the
belt.
b. Disassembly and Assembly
1) Engine body
Drain the oil and the water, if disassemble the engine
body.
1. Remove the muffler and exhaust manifold (7).
2. Remove the starter (9) and the oil pressure switch
(8).
3. Pull out the oil gauge (6).
4. Remove the alternator (5) and the fan belt (1).
5. Remove the hour meter unit (2).
6. Loosen the oil filter (3) with a filter wrench and re-
move it and the oil filter flange (4).
* This figure does not show Hour meter Unit (2) cov-
ered with the cooling fan.
(When reassembling)
Apply liquid gasket (three bond 1,215 or equivalent) on
the thread of the oil pressure switch (8).
Apply liquid gasket to the both sides of the hour meter
gasket.
Apply oil to the O-ring and tighten the oil filter not with
wrench but by hand.
Adjust the fan belt tension (See fan belt).
Belt tension
(deflection)
Factory spec 7 ~ 9 mm
0.28 ~ 0.35 in.
Tightening
torque
Oil pressure
switch
14.7 ~ 19.6 N·m
1.5 ~ 2.0 kgf·m
10.8 ~ 14.4 lbf·ft
www.mymowerparts.com
K&T Saw Shop 606-678-9623 or 606-561-4983
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