MTD 112-530 User Manual

10*

Model Nos.

ROTARY MOWER

112-530

I M P O R TA

SAFE OPERATION PRACTICES - WALK BEHIND MOWERS

TRAINING

1. Read the Operating and Service Instruction Manual
carefully. Be thoroughly familiar with the controls and
proper use of the equipment.

2. Never allow children to operate a power mower.

3. Keep the area of operation clear of all persons,

particularly small children, and pets.

PREPARATION

1. Thoroughly inspect the area where the equipment is to

be used and remove all stones, sticks, wire, bones and
other foreign objects.

2. Do not operate equipment when barefoot or wearing

open sandals. Always wear substantial footwear.

3. Check fuel before starting engine. Do not fill gasoline
tank indoors, when engine is running, or while engine

is still hot. Wipe off any spilled gasoline before starting

engine.

4. Disengage self-propelled mechanism or drive clutch on
units so equipped before starting engine (motor).

5. Never attempt to make a wheel height adjustment while
engine (motor) is running.

6. Mow only in daylight or in good artificial light.

7. Never operate equipment in wet grass. Always be sure
of your footing; keep a firm hold on the handle and
walk; never run.

OPERATION

1. Do not change engine governor settings or overspeed

engine.

2. Do not put hands or feet near or under rotating parts.

Keep clear of discharge opening at all times.

3. Stop blade(s) when crossing gravel drive, walks or roads.

4. After striking a foreign object, stop the engine (motor),
remove wire from spark plug, thoroughly inspect the
mower for any damage, and repair the damage before
restarting and operating the mower.

5. If the equipment should start to vibrate abnormally,
stop the engine (motor) and check immediately for the
cause. Vibration is generally a warning of trouble.

6. Stop engine (motor) whenever you leave the equipment,
before cleaning mower housing, and when making any

repairs or inspections.

7. When cleaning, repairing or inspecting, make certain

blade and all moving parts have stopped. Disconnect

spark plug wire and keep wire away from plug to prevent
accidental starting.

8. Do not run engine (motor) indoors.

9. Shut engine (motor) off and wait until blade comes to a
complete stop before removing grass catcher and/or

unclogging chute.

10. Mow across the face of slopes, never up-and-down.
Exercise extreme caution when changing direction on

slopes. Do not mow excessively steep slopes.

11. Always disconnect electric mowers (line operated)

before cleaning, repairing, or adjusting.

12. Never operate mower without proper guards, plates or

other safety protective devices in place.

13. Keep washout ports and other mower housing service

openings closed when mowing.

MAINTENANCE AND STORAGE

1. Check blade and engine mounting bolts at frequent
intervals for proper tightness.

2. Keep all nuts, bolts, and screws tight to be sure equip
ment is in safe working condition.

3. Never store equipment with gasoline in the tank inside

of a building where fumes may reach an open flame or
spark. Allow engine to cool before storing in any
enclosure.

4. To reduce fire hazard keep engine free of grass, leaves or

excessive grease.

5. Check grass catcher bags frequently for wear or deterio

ration. Replace with new bags for safety protection.

MTD PRODUCTS INC

• 5389 WEST 130th STREET •

P. 0. BOX 2741 CLEVELAND OHIO 44111

FORM NO. 770-3484

NOTE: Set screws in pulleys are treated with a nut

and bolt sealant. Remove with Allen wrench while
applying heatwith a smalltorch. Sealant disintegrates
at 400°

Blade Spindle Detail on page 7
Blade idler Detail on page 6-

NOTE: To engage the blade with the engine running..

1. Move the throttle control lever to “FAST’ position.

2. Engage the blade engagement lever SLOWLY.

3. Adjust en^Tirtc speed.

The engine is not under warranty by the mower
manufacturer... If repairs or service is needed
on the engine, please contact your nearest
authorized engine service outlet. Check the

“Yellow Pages” of your telephone book under

“Engines — Gasoline.”

Find us fast in the

PA RT S LI ST

FO R RO T AR Y M O W ER M O D EL N O .

112 -5 30

Ref.

No.

Par t Ref.

1

2

No.

732-158
754-109

Blade Tension Spring

V Belt - 1/2 X 43 *

DE SC R IP TIO N

3 7b6-300 Flat Washer — 3/8 I.D.
4 710-373

5

756-370

6 712-372

Shoulder — Special
Idler Bearing Assembly 75 712-287
Centerlock — Hex Nut — 5/16—18 thread * 76 712-107

7 310-7353 Bracket — Belt

8 711-212 Sleeve

9 741-120

10 719-120

Bearing - Upper

Spindle Housing
11 712-123 Hex Nut — 5/16-24 thread * t
12

710-117

Hex Head Cap Screw (heat treated) — 82

5/16-24 X 1 long t

710-489

13

513-9383

14

738-213 Axle Bolt — 5/8 length thread

15

741-114

16
17 736-217

748-189

18
19

736-119

Hex Hd. Cap Sew. 3/8-24x1/2 Ig.(heat tr’d)t 84

Wheel Assembly — 8” - B.B.

Ball Bearing

Spring Lockwasher -3/8 heavy duty screw*t

Blade Adapter t

Spring Lockwasher - 5/16 screw * t
20 711-240 Spindle

742-125

21

22

710-122

Blade - 22”- 93

Hex Hd. Cap Sew. 5/16—24 x 1 long *
23 312-8324 Belt Guard 95
24

712-123

25

710-122

26

27

28
29
30
31
32
33
34
35

3-9925
11446
710-473
438-8280
736-921
712-922
710-102
736-222
438-8295

— Engine

36 710-158
37 714-365
38 310-8328
39

736-108

Hex Nut — 5/16—24 thread * 96
Hex Hd. Cap Sew. 5/16—24 x 1 long *

Pulley - 4”
Deck Assembly - 22”
Truss Hd. Mach. Sew. 10—24 x 1/2 long *
Frame Assembly
Spring Lockwasher - 1/2 screw *
Hex Jam Nut - 1/2-20 thread *

Hex Hd.Cap Sew. 1/4—20 x 2-1/2 long *

Ext. Lockwasher - 1/4 screw *
Blade Spindle Cover

Hex Hd. Cap Sew. 5/16-24 x 1-1/4 long * 118

Key — Hi Pro #505 * t

Handle Support - Lower R. H.

Flat Washer - 33/64 I.D. *

41 310-8334 Handle — Lower H. W.
43 310-8327 Handle Support - Lower L.H.
44 310-8325 Belt Trap Assembly

738-234

46
47 310-9372

Pivot Screw

Pivot Bracket

49 756-110 Pulley - Engine
50 712-430 Elastic Stop Nut — 3/8-16 thread *
51

300-8809

Reinforcement Plate

*For faster service obtain standard nuts, bolts, and washers

locally. If these items cannot be obtained locally, order by

number and

nart

438 - Polar Blue \
437 - Flag Red '

size as shown on narts list.

When ordering parts if color or finish is important, use the appropriate color code shown at left,
(e.g. Polar Blue finish — 11446 (438).)

Par t

No.

No.

71 711-179
72 711-180

710-606

73
74 710-106

Ferrule

Control Rod
Hex Hd. Cap Sew. 1/4—20 x 1-1/2 long *
Hex Hd.Cap Sew. 1/4-20 x 1-1/4 long *

DE SC R IP TIO N

Hex Nut — 1/2—20 thread *
Centerlock — Hex Nut — 1/4—20 thread *

77

11623

78

712-324 Elastic Stop Nut — 1/4—20 thread *
79 736-325
80

310-8376
81

310-8373 Lockout Lever Assembly

305-7071

83 310-9364

310-8378
85 712-526
87 746-145

734-180

88

741-113

89

738-114

90
91 736-105

710-209

92

310-9373
94

310-8298
310-9371

901-7805
734-392

97

736-147

98

104

312-7919
710-938

no

Control Panel

Flat Washer - .265 i.D. *
Lockout Bracket Assembly

Grip - Black

Handle — Upper

Clamp Bracket
Speed Nut - 10-24 thread *
Cable Clip
Wheel Assembly - 16” less tire
Ball Bearing
Axle Bolt
Belleville Washer
SEMS Hex Hd. Cap Sew. 3/8—16 x 5/8 Ig.*
Control Rod
Idler Bracket Assembly
Brake Lever
Blade Spindle Ass’y-Complete H.W
Tire — Rib Tread 16 x 1.75
Ext. Lockwasher - # 10 screw *
Anti Scalp Plate - 8-1/2”

Allen Set Screw — 1/4-28 x 1/4 long*

(not shown)

741-107

111

502-8761 Wheel Ass’y Complete

113

736-154 Washer

114

721-105 Seal

115

737-479

116

728-649 Rivet

117

Bearing - Lower - Blade Spindle

Zerk Fitting

754-647 Brake Shoe

310-8378

119

710-148

120
121
122
123

124

746-171 Throttle Control - Complete
736-112 Belleville Washer
736-169
710-152
718-132

125

10769
126 11167
127

726-106

128

11145

129

11141

130

732-253

131

11130 Adapter Plate

132 711-555

Clamp Bracket
Thread Cut Screw #8—32x3/8 Ig.*

Lockwasher 3/8 Screw. *
Hex Head Cap Screw 3/8 —24x1 Ig.*
Plastic Cap — Rear Wheel (not shown)

Blade Adapter Kit

Protective Shield

Push-on Flange Palnut
Hinge Rod
Chute Deflector
Torsion Spring

Pivot Pin