Page 1
10 CENTS
Model Nos. 110-300
110-310
ROTARY MOWER
For one year from date of purchase, MTD Products, Inc.,
will replace for the original purchaser, free of charge, F.O.B.
factory or authorized service firm, any part or parts found to
be defective in material or workmanship. All transportation
charges on parts submitted for replacement under this war
ranty must be paid by the purchaser. This warranty does not
include replacement of parts which become inoperative
through misuse, excessive use, accident, neglect, improper
maintenance or alterations by unauthorized persons. This
warranty does not include the engine, motor, battery, bat
tery charger or any component parts thereof. For service on
these units refer to the applicable manufacturer’s warranty.
The above warranty will apply only to the original owner
and will be effective only if the warranty card has been pro
perly processed. It will not apply where the unit has been
used commercially.
Warranty service is available through your local author
ized service dealer or distributor. UNDER NO CIRCUM
STANCES WILL THE RETURN OF A COMPLETE UNIT
BE ACCEPTED BY THE FACTORY UNLESS PRIOR
WRITTEN PERMISSION HAS BEEN EXTENDED.
Your rotary mower is a precision piece of power equip
ment,, not a plaything. Therefore exercise extreme caution
at all times.
1. Remove all sticks, stones, wire and other hazardous items
from lawn before mowing. Such items are dangerous to
both the mower and individuals in the vicinity of the
mower.
2. Always disconnect spark plug cable during repairs or re
fueling operations.
3. Always start engine from side opposite discharge chute.
4. NEVER place hands or feet under mower or near dis
charge chute while engine is running.
5. Do not tilt mower at extreme angle while engine is run
ning. Cut grass on hills and banks sideways, not up and
down.
6. Always stop engine when not cutting grass.
7. Do not fill gas tank while engine is running. Do not spill
gasoline on hot engine.
8. Keep children and pets away from area at all times during
mowing operation. Never allow mower to discharge grass
toward any person.
9. Do not attempt to start engine while mower is resting in
high grass.
10. Check all nuts and bolts, particularly the blade bolts, for
tightness. This is especially important during the initial
operation period. Make this same check periodically
thereafter.
NOTE: Should excessive vibration develop, check your blade
and crankshaft immediately. Do not operate mower with an
unbalanced blade, a damaged bleide or a damaged crankshaft.
MTD F»K.ODtJCTS lOSrC
• 5389 WEST 130th ST. • P.O. BOX 2741
CLEVELAND, OHIO 44111
FORM 770-2434A
Page 2
T1
O
UPPER HANDLES ORDER
73
Z
CHROME 310-9364
WHITE 312-9363
CONTROL PANEL
ORDER; 3-7857
3-8511
NOTE: Easy Height Adjuster MAY or MAY NOT be used on your unit.
Ulus.
No.
31 310-7492
32
33
34 712-214
35 710-209
36
37
37
Part
No.
310-S313
305-7520
710-362
738-102
310-9682
310-9683
DESCRIPTION
Wheel Pivot Bar
Spring Lever Assembly
Red Knobs
GRIPCO Locknut 3/8 — 24 Thread
Sems Hex HeatJ Cap Screw 3/8 — 16 x 5/8 Long
Hex Bolt Special
Axle Bolt
Index Plate R. H.
Index Plate L. H.
WHERE LOOP HANDLES ARE USED
ORDER: CHROME 310-7585
WHITE 312-7584
When ordering parts give
the following information.
1. Model number
2. Part number
3. Part name
4. Color of part
LOWER HANDLES ORDER:
CHROME 310-7016 19"
WHITE 312-7039 19"
CHROME 310-7036 22"
WHITE 312-7040 22"
110-300 20”
110-310 22”
CHANGE OIL
Change oil after first 5 hours of op*
eration while engine is warm. There
after change oil every 25 hours of
operation while engine is warm. En
gine may be drained through oil filler
opening. Be sure to replace drain
plug and oil filler cop.
BLADE ADAPTER
KIT 901-7969
901-9691 L.H.
901-9692 R.H.
,33-Q
^34
Page 3
PARTS FOR MODELS 110-300 and 110-310
Ulus.
No.
1
2
110-300
Part No.
710-158 710-158 Hex Head Cap Screw 5/16—24 x 1-1/4 *
110-310
Part No.
__
Engine
3 714-507 714-507 Cotter Pin 3/32” dia. x 3/4” Ig. *
4 504-9392 505-9392 Wheel Assembly
414-10128
5
714-365 714-365 Key-Hi Pro # 505 *
6
7 712-123
736-119 736-119 Lockwasher 5/16” Screw *
8
9 748-100
10
-11
12
312-7582 312-7581
736-169 736-169
710-117 710-117
13 710-113
14 738-213
15
16
17
18
19
20
21
22
23
24
25
305-7006 305-7006 Fortiflex Bearing
736-105
732-141
310-7016 310-7036 Handle Lower
712-107
710-106
746-145
710-606 710-606
394-9973
710-148 710-148
310-9364
26 305-7072
27 310-10029
310-8511
28
29
30
305-7470
310-10006
901-7627
414-10129
712-123
748-100
710-113 Hex Head Cap Screw 3/8 — 24 x 1-5/8 Ig. (heat treated)
738-213 Axle Bolt -Use 738-102 w/height adjusters
736-1-5 Belleville Washer
732-141
712-107
710-106
746-145 Cable CUp
394-9973 Cover Control
310-9364
305-7072
310-10029
310-8511
305-7470
310-10006
901-7627
Deck Assembly
Hex Nut 5/16-24 thd.*
Blade Adapter
Blade
Lockwasher 3/8 Screw *
Hex Head Cap Screw 5/16 — 24 x 1 Ig. (heat treated)
Conduit and Wire
Hex Centerlock Nut 1/4-20 thd. *
Hex Head Cap Screw 1/4-20 x 1-1/4 Ig. *
Hex Head Cap Screw 1/4-20 x 1-1/2 Ig. *
Self Tap Screw # 8-32 x 5/16 ” Ig. *
Handle Upper (2 Req’d)
Grips (2 Req’d)
Throttle Control (complete) Use w/plastic cover 305-9972
Throttle Control (complete) Use w/ steel cover 3-7857
Knob Control t
Throttle Bracket f
Ferrule Assembly (complete) t
DESCRIPTION
* 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.
t Included in Part No. 310-10029 Control-Throttle (complete).
When ordering replacement parts, be sure to specify
your mower model number, part number, description
of part, and the number of parts required . . Parts and
service should be handled by your nearest authorized
service firm as recommended by your dealer. Request
for parts and service received at the factory will be for
warded to the appropriate Central Service Distributor
in your area for handling.
NOTE: This instruction manual covers various models, and all accessories shown do
not necessarily apply to your model mower... MTD PRODUCTS INC extends its war
ranty only on the mower. If repairs or service is needed on the engine, please contact
your nearest authorized engine service outlet. Check the "Yellow Pages" of your tele
phone book under "Engines — Gasoline."
Find It Fast
In The
'Yellow Pages'
FORM 770-2434C
Page 4
ASSEMBLY
Youi new mower is shipped completely assembled with the excep
tion of the handle and throttle control assembly.
1. Remove lawn mower and aU parts from carton. Make certain
that all loose parts and literature are removed from carton before
carton is discarded.
2. Extend throttle control assembly, which is attached to engine, to
rear of mower and place on floor. CAUTION: Do not bend or
kink control wire.
3. Assemble upper handle to lower handle using four each screws
and lock nuts provided in parts bag.
4. .^ssemble complete handle assembly to mower so that throttle
control mounting hole in upper handle will be on right side. Holes
at bottom of lower handle are to be fitted over studs located in
front of each rear wheel mounting position.
5. Position throttle control assembly on right hand side of upper
handle so that holes in control assembly and handle are in line.
Secure in place with screw and lock nut found in parts bag. Se
cure throttle wire to lower right handle tube with clips in parts
bag.
6. Place the plastic control cover over the throttle control and
secure with two self-tapping screws.
OPERATION
1. Service engine with gas and oil. See engine manual packed with
lawn mower for complete instructions for the care and mainte
nance of engine. READ DIRECTIONS CAREFULLY.
2. When ready to start engine, place throttle control lever, on han
dle, in “START” position and start engine in accordance with
instructions in engine manual. After engine starts, move throttle
control lever, on handle, to desired engine speed. The engine is
stopped by placing control lever on handle in “STOP” position.
3. Be sure that lawn is clear of stones, sticks, wire or other objects
which could damage lawn mower or engine. For best results and
to insure more even grass distribution, do not mow when lawn
is excessively wet.
ADJUSTMENTS
CAUTION: Do not at any time make any adjustment to lawn mower
without first stopping engine and disconnecting spark plug wire.
easy cutting height - An adjusting plate and thumb lever at
each wheel position provides cutting height adjustment. Each adjust
ing plate has five holes. Height of cut will be changed when the
thumb lever is moved from one hole to another. Simply depress
thumb lever towards wheel and move wheel and lever assembly to
desired position. Cutting height will be raised as lever is moved to
ward front and lowered as lever is moved toward rear. All wheels
must be positioned in relative height of cut positions.
CUTTING HEIGHT — Adjustment may be made by removing and
moving wheel studs to desired position. Cutting heights will be raised
as wheel studs are moved to a lower hole and lowered as wheel studs
are moved to a higher hole in the deck. All wheel studs must be
mounted in a relative position to the deck.
THROTTLE - If adjustment becomes necessary, the throttle con
trol wire assembly can be reset as follows:
1. Loosen, but do not remove, screw securing throttle control wire
assembly at engine.
2. Move throttle control lever on handle to “FAST” position.
3. Move lever, to which control wire is fastened at engine, to full
open position and retighten screw to secure throttle control wire
assembly.
LUBRICATION
IMPORTANT: Always stop engine and disconnect spark plug wire
before cleaning, lubricating or doing any kind of work on lawn
mower.
WHEELS — Wheel bearings are fortiflex. They require no lubrication.
THROTTLE — Periodically lubricate throttle control lever and
throttle wire assembly with a few drops of light oil (S.A.E. No. 10
or 20) for ease of operation.
ENGINE — Follow Engine Manual for lubrication instructions.
MAINTENANCE
CUTTING BLADE - The blade may easily be removed for grind
ing or replacement as follows:
1. Remove bolt and lockwasher holding blade and hub assembly to
engine crankshaft
2. Remove blade and hub assembly from engine crankshaft.
3. Remove two bolts, lockwashers and nuts holding blade to blade
hub.
When sharpeiung blade, follow the original angle of grind as a guide.
It is extremely important that each cutting edge receives an equal
amount of grinding to prevent an unbalanced blade. An unbalanced
blade will cause excessive vibration when rotating at high speeds
and may cause damage to the mower.
Upon reassembly, make certain aU parts are assembled properly and
tightened securely.
DECK - The underside of mower deck should be cleaned after
each period of use as grass clippii%s, leaves, dirt and other matter
will accumulate. This accumulation of grass clippings, etc., is un
desirable as it will invite rust and corrosion and may cause an un
even discharge of grass clippings at the next cutting.
The deck may be cleaned by tilting the mower forward or on its
left side and scraping clean with a suitable tool or by washing with a
stream of water from a garden hose.
CALfTION: Do not direct the stream of water at a hot engine as
damage to the engine may result.
STORAGE — The following steps should be taken to prepare
lawn mower for storage.
1. Clean and lubricate mower thoroughly as described in the preceeding instructions.
2. Refer to Engine Manual for correct engine storage instructions.
3. Coat mower’s cutting blade with chassis grease to prevent rust
ing.
4. Place blocks under deck to raise tires clear of floor.
5. Store mower in a dry, clean area.
USING YOUR ROTARY MOWER
For best results do not cut wet grass because it tends to stick to
underside of the mower thus preventing proper discharge of grass
clippings. If wet grass must be cut reduce engine speed and walking
speed to help distribute the clippings more effectively.
New grass should be treated as wet grass, otherwise a normal walk
ing speed is about the right pace for efficient mowing.
The best mowing pattern is one that allows the clippings to dis
charge towards the uncut part of the lawn. This permits recutting of
the clippings to further pulverize them. When cutting high weeds,
discharge towards cut portion then recut at right angles to first di
rection.
Lawn should be cut in the fall as long as there is growth.
FORM NO. 770-2434D
PRINTED IN U.S.A.
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