Model 638 – MTD 112-638A User Manual
Page 15
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Model 638
PARTS LIST FOR MODEL 638
REAR DISCHARGE ROTARY MOWER
I
REF.
'*'N0.
PART
NO.
COLOR
CODE
DESCRIPTION
NEW
PART
REF.
NO.
PART
NO.
COLOR
CODE
DESCRIPTION
NEW
PART
1
766-0428
Throttle Control Ass'y. Comp.
50
12323
Index Plate
2
710-0606
Hex Bolt 1/4-20
X
1.50" Lg.*
51
10531
Spring Lever Ass’y. w/Knob
3
749-0378
Upper Handle
52
736-0105
Bell-Wash. 3/8" I.D.
4
726-0188
Plastic Cable Tie
53
741-0332
Flanged Ball Bearing
5
749-0374
Lower Handle
54
734-1062
Wheel Ass’y. Comp. 8 x 1.75
6
726-0209
Fuel Tank Straps
55
710-0427
Hex Bolt 3/8-16 x 2.00" Lg.
7
751-0225
Fuel Tank
56
712-0375
Hex Cent. L-Nut 3/8-16 Thd.
8
723-0155
Fuel Gauge
57
736-0255
Bell-Wash. .50" I.D. x 1.14"
9
710-0380
Hex Bolt 5/16-18
X
1.75" Lg.*
O.D.
10
749-0514
Upper Strut
58
10619
Pivot Bar
11
____
Engine
59
738-0269
Shoulder Bolt (3/8-16 Thd.)
12
13773
Engine Mount Cover Plate
60
13407 - -488
Chute Door
13
710-0442
Hex Bolt 5/16-18
X
1.50" Lg.*
61
732-0346
Torsion Spring
14
736-0119
L-Wash. 5/16" I.D.*
62
712-0271
Hex Sems Nut V
4-20 Thd.*
15
712-0158
Hex Cent. L-Nut 5/16-18 Thd.
64
710-0167
Carriage Bolt V4-20 x .50"
16
735-0149
Bushing (Fuel Tank)
Lg.*
17
751-0171
Fuel Shut-Off Valve
65
738-0386
Hinge Pin .250" Dia. x 7.25"
18
726-0183
Hose Clamp 3/8" I.D.
Lg.
19
—
Fuel Line (Comes w/Engine)
67
712-0271
Hex Sems Nut V4-20 Thd.*
20
12297
Handle Mount Brkt. Ass’y-
68
710-0258
Hex Bolt
1/4-20
X
.62" Lg.*
21
14426
Fuel Tank Mounting Brkt.
69
731-0449
Rear Flap Ass’y.
22
749-0513
Lower Strut
72
12322
Height Adjuster Ass’y.
23
710-0118
Hex Bolt 5/16-18
X
.75" Lg.*
Comp.—R.H.
24
751-0279
Fuel Control Valve
75
14592
Handle Mount Brkt. Ass’y.
26
12321
Height Adjuster Ass’y.
— R.H.
N
Comp.—L.H.
76
710-0776
Hex Wash. Hd. Self-Tap Scr.
27
710-0209
Hex Sems Bolt 3/8-16 x .62"
1/4-20
X
.62" Lg.
Lg-*
77
714-0104
Hairpin Cotter 5/16" Dia.
^8
14425
Strut Mounting Bracket
78
726-0100
Push Cap 3/8" Rod
29
14004
—488
22" Deck Ass’y.
79
731-0430
Plastic Roller
30
710-0654
Hex Wash. Hd. Self-Tap Scr.
80
736-0142
FI-Wash. .281" I.D. x .50"
3/8-16
X
.88" Lg.
O.D.
X
.063
31
14014
—488
Rear Chute Baffle—L.H.
81
14012 - -488
Grass Catcher—Hitch Brkt.
32
710-0167
Carriage Bolt V4-20 x .50"
82
710-0703
Carriage Bolt V
4-20 x .75"
Lg.*
Lg.*
33
714-0365
#6 Hi-Pro Key 5/32 x 5/8" Dia.
83
712-0267
Hex Nut 5/16-18 Thd.*
34
10769
Blade Adapter Kit
84
732-0357
Extension Spring .33" O.D.
35
10769
Blade Adapter Kit
X
1.12" Lg.
36
736-0217
L-Wash. 3/8" I.D.—H.D.
85
14584
Grass Catcher Lock Lever
N
37
710-0459
Hex Bolt 3/8-24 x 1.50" Lg.
86
738-0155
Shid. Bolt .427" Dia. x
(Grade 5)
.162" Lg.
38
710-0117
Hex Bolt 5/16-24 x 1.00" Lg.
87
14582
Grass Catcher Lower Frame
(Grade 5)
Ass’y.
N
39
742-0125
22" Blade
88
749-0512
Grass Catcher Upper Frame
41
712-0123
Hex Nut 5/16-24 Thd.*
89
764-0191
Grass Bag
42
712-0287
Hex Nut 1/4-20 Thd.*
90
718-0145
Grip
43
736-0329
L-Wash.
1/4" I.D.*
91
712-0107
Hex Cent. L-Nut V4-20 Thd.
45
710-0167
Carriage Bolt
1/4-20 x .50"
\
n *
92
07919
Scalp Plate (Not Shown)
48
14235
—488
LQ.
Rear Chute—Ass’y.—
(Includes Ref. Nos. 60,
61 and 65)
'For faster service obtain standard nuts, bolts and washers
locally. If these items cannot be obtained locally, order by
part number and size as shown on parts list.
NOTE; The engine is not under warranty by
the mower manufacturer., .If repairs or ser
vice is needed on the engine, please contact
your nearest authorized
a
—-—---------------------
engine service outlet. Check Find It Fast
the “Yellow Pages” of your In The
telephone book under Yellow Pages
“Engines—Gasoline.”
(488—Mack Truck Yellow)
When ordering parts, if color or finish is important use the ap
propriate color code shown above, (e.g. Mack Truck Yellow
Finish—14004 (488).)
15
NOTE
This instruction manual covers various models
and all specifications shown do not necessari
ly apply to your model. Specifications subject
to change without notice or obligation.