615® 634ai – Sears 536.25587 User Manual
Page 65
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ENGINE MODEL 402707-1235-01 FOR 43" TRACTOR MODEL 536.255870
615®
634AI
40
35
868
36
819
^0 45
219 A
REF,
PART
NO, NO.
DESCRIPTION
16
24
25
393382 Crankshaft
Note: Order S4195 For
Timing Gear Key,
222698 Key-Flywheel
394955 Piston Assy,
(Standard)
394956 Piston Assy
{,010” O.S,)
394957 Piston Assy
{,020" O.S.)
394958 Piston Assy
(.030" O.S.)
PISTON RING SETS:
26
394959 Ring Set-Piston
(Standard)
394960 Ring Set-Piston
(.010* O.S,)
394961 Ring Set-Piston
( 020" O.S.)
394962 Ring Set-Piston
(.030” O.S.)
REF.
PART
NO. NO.
DESCRIPTION
27
260924
28
299691
391286
29
492667
Note:
32
94671
33
34
35
36
40
41
39D420
261528
65906
26828
221596
292260
Lock-Piston Pin
Pin Assy-Piston
(Standard)
Pin Assembly-
Piston (.005” O.S.)
Rod Assembly
Connecting
For Connecting Rod
With .020" Undersize
Crankpln Bore-Order
N0.397158.
Screw-Connecting
Rod
Valve-Exhaust
Valve-Intake
Spring-Intake Valve
Spring-Exhaust Valve
Retainer-intake Valve
Rotocoil-Exhaust
Valve
REF.
NO
PART
NO.
DESCRIPTION
42
93630
45
46
219
219A
220
230
552
552A
615
616
634A
741
819
868
261368
213421
393415
394348
222773
223882
262332
262331
94296
491530
*491287
262694
94675
393606
Retainer-Exhaust
Valve Rotocoil (2)
Tappet-Valve
Gear-Cam
Oil Slinger Assembly
Gear-Governor
Washer-Thrust
Washer-Gov. Crank
(Inside)
Lower Bushing-Gov.
Upper Bushing- Gov,
Relainer-E-Ring
Crank-Governor
Seal-Governor Shaft
Gear-Timing
Screw-Hex Hd.
Seal Assy. & Retainer
* Included in Gasket Set-Part No. 491856,
Assemblies include all parts shown in frames.
65