Snapper 1650 Series User manual

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Operator's Manual
and Mower Assembly Instructions
for
GARDEN TRACTORS & MOWERS
McDonough Power Equipment, McDonough,
Georgia 30253. A Fuqua Industry.
WNMMmm
1650
165

SAFETY PRECAUTIONS
Read this Manual carefully before operating machine. Give special attention to all safety suggestions.
They are included for your protection.
Safety Shields are usually removed for access to assemblies being serviced and sometimes for photographic
purposes (clarity of Figure). All safety shields must be replaced after servicing. Also replace any Caution,
Warning, or Instruction Decal that is not readable ... or missing. Refer to "Operator's Manual" for decal locations.
• Know the controls and how to stop quickly. READ
THE OPERATOR'S MANUAL.
• Do not allow children to operate the vehicle. Do
not allow adults to operate it without proper in¬
struction.
• Do not carry passengers. Keep children and pets
a safe distance away.
• Wear substantial shoes and long pants while
using Mower.
• Clear work area of objects which might be picked
up and thrown.
• Disengage power to mower blades, depress clutch-
brake pedal and shift into neutral before at¬
tempting to start engine.
• Disengage power to mower blades, shut off en¬
gine and remove key before leaving operator's
seat.
• Disengage power to mower blades and shut off
engine before making any repairs or adjustments.
• Disengage power to mower blades when transport¬
ing or not in use.
• Take all possible precautions when leaving the
vehicle unattended, such as disengaging power,
lowering mower blades, shifting into neutral,
setting parking brake, shutting off engine and
removing key.
• Set mower at highest cutting height when mowing
in rough ground or in tall weeds.
• Do not stop or start suddenly when going uphill
or downhill.
• Reduce speed on slopes and in sharp turns to pre¬
vent tipping or loss of control. Exercise extreme
caution when changing direction on slopes.
• Stay alert for holes in terrain and other hidden
hazards.
• Do not operate mower in wet grass.
• Use care when pulling loads.
• Use only approved drawbar hitch point.
• Limit loads to those you can safely control.
• Do not turn sharply. Use care when backing.
• Watch out for traffic when crossing or near road¬
ways.
• This Tractor is not designed, nor intended for
street or highway use.
• When operating mower blades, never direct dis¬
charge of material toward bystanders nor allow
anyone near vehicle while in operation.
• Handle gasoline with care — it is highly flam¬
mable.
• Use approved gasoline container.
• Never remove cap of fuel tank or add gasoline
while engine is running or hot. Never fill fuel
tank indoors. Wipe up spilled gasoline.
• Open doors if engine is run in garage — exhaust
fumes are dangerous.
• Keep unit in good operating condition, and keep
safety devices in place.
• Keep all nuts, bolts and screws tight to be sure
equipment is in safe working condition.
• Never store equipment with gasoline in tank in¬
side a building where fumes may reach an open
flame or spark. Allow engine to cool before stor¬
ing in any enclosure.
— 1 —

• To reduce fire hazard, keep engine free of grass,
leaves or excessive grease.
• Mower should be stopped and inspected for dam¬
age after striking a foreign object, and damage
should be repaired before restarting and oper¬
ating.
• Do not change engine governor settings or over¬
speed engine.
• When using unit, proceed as follows:
• Mow only in daylight or in good artificial light.
• Never make a cutting height adjustment while
engine is running.
• Shut engine off when unclogging mower.
• Check blade mounting bolts for proper tightness
at frequent intervals.
• With riding mowers mow slopes up and down.
Moving across slopes could tip a rider over.
PERSONAL INJURY MAY RESULT IF
THESE PRECAUTIONS ARE NOT FOLLOWED.
A
Look for this symbol to point out important safety pre¬
cautions. It means - ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED.
i4 CAUTION
1. KEEP ALL SHIELDS IN PLACE, on . I Tinu
7. BEFORE LEAVING OPERATOR> | 1 1 P T ° D S 'J 10N
. SHIFT TRANSMISSION TO NEUTRAL.
. SET PARKING BRAKE
. DISENGAGE ATTACHMENT CLUTCH.
. SHUT OFF ENGINE.
• REMOVE IGNITION KEY.
3 DO NOT SERVICE MACHINE UNTIL ALL
MOVEMENT HAS STOPPED.
4 KEEP PEOPLE AND PETS A SAFE
DISTANCE AWAY FROM MACHINE
Located on Left Side Panel
A CAUTION
SHUT OFF ENGINE
BEFORE REFUELING
A CAUTION
ROTATING BLADES
keep Hands and feet
FROM UNDER MOWER
Located on Instrument Panel
Located on Top of Mower Left-Hand Side
^CAUTION
• ROTATING BLAD
• KEEP HANDS AN
UNDER MOWER
• KEEP DEFLECTOR IN PLACE
WHEN MOWER IS OPERATING
Located on Top of Mower Right-Hand Side
— 2 —

INDEX
PAGE
INTRODUCTION . 4
IDENTIFICATION PLATES . 5
ASSEMBLY AND
PRE-DELIVERY INSTRUCTIONS. 7
CONTROLS . 9
Ammeter . 9
PTO Switch ... 9
Choke . 9
Ignition Switch . 9
Throttle. 9
Hourmeter (Accessory). 9
Speed Control/Parking Lever. 9
Auxiliary Hydraulic Control Levers . 9
Rear Axle Shift Lever . 10
Rear PTO Lever . 10
Forward/Reverse Pedal . 10
Neutral Return Brake Pedal . 10
Seat Control . 11
TRACTOR OPERATION. 12
Pre-Starting Inspection . 12
Operating Tips . 12
Starting Engine . 13
Driving Tractor . 14
Stopping Tractor . 14
Travel Speeds . 14
Moving By Hand . 14
Attaching Implements . 14
LUBRICATION . 16
TRACTOR MAINTENANCE . 18
Battery ...'.. 18
Air Cleaner . 18
Tires and Wheels. 18
Fuel Filter . 18
Cooling System . 18
SERVICING . 19
SparkPlug . 19
MANUFACTURER'S LIMITED WARRANTY
PAGE
Breaker Points . 19
Engine Cylinder Head Bolts . 19
Carburetor Adjustment . 19
Governor Adjustment . 20
Power Take-Off . 21
Front Belt Adjustment . 21
Front Belt Replacement . 21
Rear Belt Adjustment . 21
Rear Belt Replacement . 22
Forward/Reverse
Pedal Adjustment . 22
Transmission and Brake Test . 22
Transmission Adjustment . 22
Brake Adjustment . 23
Toe-In . 24
Wiring . 24
Tractor Storage . 26
Removing From Storage . 26
Trouble-Shooting . 26
TRACTOR SPECIFICATIONS . 27
ROTARY MOWER . 28
Installation. 28
Preparing Tractor . 28
Preparing 48" Mowers .29
Preparing 42" Mowers .30
Attaching Mid Mount Mowers .30
Preparing 54" Mower . 3 2
Attaching 54" Mower.32
Operation. 33
Detaching Mowers. 34
Mower Mounting Ramps. 34
Mower Adjustments. 34
Levelling. 34
Mower Drive Belt Tension. 34
Mower Drive Belt Replacement. 35
Mower Belt Tension. 35
Mower Belt Replacement. 35
Mower Storage. 36
Removing Mower from Storage. 36
MOWER SPECIFICATIONS. 37
INSIDE BACK COVER

INTRODUCTION
The Snapper 1650 & 1650A Garden Tractors are equipped with a 16 horsepower, air-cooled, four-cycle
engine and are driven by a hydrostatic transmission in combination with a two-speed rear axle.
PTO driven implements are controlled by an electric clutch, which is driven by engine front PTO shaft.
Mounted implements are raised and lowered by a hydraulic lift. Rear PTO, which is standard on 1650A and
optional on 1650 models, is controlled by a belt idler clutch.
Tractors are equipped with headlights, twin tail lights and electric starter. A variety of front, mid and rear
mounted implements are usable with machine.
This Manual contains two sections regarding care of Tractor. "Maintenance" Section is concerned with
usual servicing procedures, requiring average mechanical ability. "Servicing" Section discusses more com¬
plex procedures, requiring above average mechanical ability and tools. Although all service must be per¬
formed in a competent manner, it is recommended that procedures discussed in "Servicing" Section be
performed by able mechanics, such as those available at Snapper Dealers.
All directions, left or right, are when seated on Tractor seat. READ THIS MANUAL CAREFULLY BEFORE
OPERATING TRACTOR AND ROTARY MOWER. Give special attention to paragraph entitled "Pre-Starting
Inspection."
*
— 4 —

IDENTIFICATION PLATES
Tractor chassis, engine and Mower base each have identification plates. Record numbers on these plates
» i n spaces provided and refer to them when requesting parts. Note that engine has model, serial and specifica¬
tion numbers, while other plates have only model and serial numbers.
MOWER SERIAL NO.
— 5 —
ENGINE SERIAL NO.
CHASSIS SERIAL NO.

FUEL
Refill tank after using Tractor, except when storing machine. If a fuel tank is partially filled for an ex¬
tended Period of time , condensation may occur. Fill tank with clean, fresh, unleaded (preferred) or regular
gasoline. NEVER USE A MIXTURE OF GASOLINE AND MOTOR OIL.
If dirt, water or other contaminants are present in fuel, drain fuel tank and line. Blow out line clean tank
and refill.
A CAUTION: Fill fuel tank outdoors and never fill while engine is running or hot.

ASSEMBLY AND PRE-DELIVERY INSTRUCTIONS
These Instructions have been prepared as a guide to assist in pre-delivery and inspection, as outlined on
New Tractor Pre-Delivery Inspection Check List (see back of Manual). Each item on the list is explained in
these Instructions.
To ensure new tractor performance and complete customer satisfaction, carry out each inspection op¬
eration completely and accurately.
ASSEMBLY
STEERING WHEEL
The Garden Tractor is shipped completely assem¬
bled, except for steering wheel and operator's seat.
With front wheel straight forward, position steering
wheel on shaft, install washer and nut and tighten to
35-45 ft.-lbs. Insert center cover into groove in top of
steering wheel with tang in recess in groove.
MOWER
See Page 28 for mower installation.
PRE-DELIVERY
ENGINE OIL LEVEL
Engine crankcase is filled at the factory to proper
oil level. If oil level is low, fill to full mark on dip¬
stick, Page 16.
ALL OIL DRAIN PLUGS
Check oil drain plugs for tightness.
FUEL LINE CONNECTIONS
Fill fuel tank and check for leaks at all connections.
SERVICE AIR FILTER
Check that air cleaner element is properly in¬
stalled and retainer is tight.
ELECTRICAL CONNECTIONS
Check wiring connections for tightness.
CHOKE CONTROL
Be sure choke control operates freely and butter¬
fly in carburetor is completely opening and closing.
ACTIVATE BATTERY
CAUTION: Electrolyte contains sul¬
phuric acid. Keep acid out of eyes,
off skin and clothes.
Tractor is shipped with a dry charge battery.
Following procedure is recommended for activation
of battery:
1. Remove battery from Tractor.
2. Remove caps and be sure vent holes are open.
3. Battery and electrolyte temperature should
be at least 70° F.
4. Fill each cell with electrolyte to level of in¬
dicator, or 3/16 inch above top of separators.
5. Permit battery to stand for 30 minutes.
6. Check electrolyte level and add as necessary.
DO NOT OVERFILL.
7. Replace filler caps and charge battery at a
rate not exceeding 4 amps, until specific gravity of
each cell reaches 1.250.
8. Install battery.
ALTERNATOR CHARGING RATE
Observe alternator charging rate by visual ob¬
servation of ammeter.
ENGINE RPM (IDLE)
Engine idle speed should be 2100 to 2300 rpm.
See Page 20.
ENGINE RPM (FULL THROTTLE)
Full throttle engine rpm should be 3500 to 3650
rpm, with no load. See Page 20.
CARBURETOR ADJUSTMENT
Carburetor is adjusted by engine manufacturer
and should not be changed unless engine does not
function satisfactorily.
Idling air adjustment should be made at same
time as high speed adjustment is made, as each
affects the other. See Page 20.
GOVERNOR PERFORMANCE
Governor action should be responsive without
surging. Surging is the result of incorrect adjust¬
ment or binding of governor linkage.
TRANSMISSION OIL LEVEL
Check dipstick under seat, when oil is warm, to
— 7 -

make certain transmission, differential and hy¬
draulic system are properly filled with Automatic
Transmission Fluid. For heavy-duty or extreme
temperature service synthetic hydrocarbon oil is re¬
commended.
LUBRICATE FITTINGS
Lubricate grease fittings with a good grade of
lithium base, general purpose grease. See Page 17.
TRANSMISSION CONTROL
AND BRAKE LINKAGE
Check adjustment. See Page 22.
TIGHTEN ALL CHASSIS
BOLTS AND SCREWS
Check chassis bolts carefully. Some are in alu¬
minium housings and if overtightened threads may
be easily damaged.
WHEEL BOLTS (REAR)
Check rear wheel bolts for tightness. See Page 18.
TIRE PRESSURE
ENGINE CYLINDER HEAD BOLTS
Check cylinder head bolts, in order shown.
Fig. 23, to 300 in.-lbs. (30 ft.-lbs.) torque.
DRIVE TEST
Drive Tractor, observing ammeter, controls and
clutch-brake operation. Check operation of all
safety switches in brake, seat and PTO controls.
IS OPERATOR'S MANUAL AND
ASSEMBLY INSTRUCTIONS
WITH TRACTOR?
Make sure Operator's Manual and Assembly
Instructions are with Tractor and explain following
to owner:
Controls
Wheel Tread Adjustments
Operating Procedures
Lubrication
Air Filter Service
Tire and Battery Care
Storage
Operator's Manual
Safety and Caution Notes and Procedures.
Tractors are shipped with tires inflated from 25
to 30 psi. Check tires carefully and bring pressures
to amounts listed on Page 18.

CONTROLS
Fig. 1 — Instrument Panel
1. Ammeter
2. PTO Switch
3. Choke
4. Ignition Switch
5. Throttle Lever
6. Hourmeter (Accessory)
Fig. 2 — Speed Control/Parking
Brake Lever
AMMETER — NO. 1, FIG. 1
Ammeter is on left side of instrument panel.
Normally needle will be on right (+) side of dial
when engine is running, indicating alternator's rate
of charge. If ammeter indicates a discharge (with
needle on (-) side of dial) for any length of time,
check wiring, battery and circuit breaker for shorts
or other malfunctions.
PTO SWITCH (IMPLEMENT
DRIVE) - NO. 2, FIG. 1
PTO switch is above choke control. Pull out
and raise switch lever over safety cap to activate
implement drive clutch and flipping down switch
(disengaged) turns it off. Clutch is located on PTO
shaft on front of engine, Fig. 22. Ignition switch
must be turned on to activate PTO switch. PTO
switch must be disengaged (down) to start engine.
Verify that engine starter will not engage with
PTO switch in engaged position.
CHOKE - NO. 3, FIG. 1
Pull knob out when starting a cold engine. As
engine warms up and begins to run smoothly, push
knob in.
IGNITION SWITCH
— NO. 4, FIG. 1
Ignition switch is key operated and is on right
lower portion of instrument panel. It has four po¬
sitions; off, run with lights, run and start. Turning
key to start cranks starter motor. When key is re¬
leased, it returns to run position. Turning key one
notch to left of "Run" turns on lights. Turning key
one more notch to left shuts off engine.
SEAT SWITCH
(DEAD MAN CONTROL)
A switch in ignition cut off circuit is located
under seat, Fig. 7. Operator must be seated on
Tractor to start or run engine.
THROTTLE - NO. 5, FIG. 1
Pushing lever up increases engine speed. When
lever is all the way down, engine is at idling speed.
HOURMETER - NO. 6,
FIG. 1 (ACCESSORY)
Hourmeter indicates accumulated hours of en¬
gine operation.
SPEED CONTROL/PARKING
BRAKE LEVER - FIG. 2
This lever is used to select desired speed range
to meet varying conditions and also as a parking
brake. Neutral return brake pedal (Fig. 5) must be
completely depressed to engage parking brake.
AUXILIARY HYDRAULIC CONTROL
LEVERS — NOS. 1 and 2, FIG. 3
1650A tractor is equipped with a 2-spool hydraulic
control valve. Control lever. No. 2, operates 3-point
— 9 —

Fig. 4 — Forward/Reverse Pedal
1. Forward/Reverse Pedal 2. Hood Latch
Fig. 5 — Neutral Return Brake Pedal
1. Neutral Return Brake Pedal 2. Hood Latch
that engine starter will not engage with rear PTO
engaged.
FORWARD/REVERSE PEDAL
- NO. 1, FIG. 4
This pedal controls direction of travel of Tractor.
Pushing toe down. Tractor moves forward. Pushing
heel down, Tractor moves rearward. Removing
foot from pedal, Tractor will stop and remain
stationary. When leaving Tractor, engage parking
brake.
NEUTRAL RETURN BRAKE
PEDAL — NO. 1, FIG. 5
When pedal is all the way up brake is disengaged.
Pushing pedal part way down positions forward/
reverse pedal. No. 1, Fig. 4, in neutral. Pushing
pedal all the way down engages brake. To lock
parking brake, engage speed control parking brake
lever to "Park" position while holding brake pedal
firmly depressed, Fig. 6. Pedal must be depressed
to start engine. Pedal must be "Up" to shift forward/
reverse pedal from neutral.
Fig. 6 — Parking Brake Lever Engaged
hitch. Control lever, No. 1, controls operation of
mid-mounted implements. The No. 1 valve spool has
four positions; lift, open center, lower and float. No. 2
valve has three positions; lift, open center and lower.
Optional third lever will control operation of remote
hydraulic cylinders. v
REAR AXLE SHIFT
LEVER - NO. 3. FIG. 3
Moving lever to right places rear axle in "Low"
range and to left in "High" range. Neutral return
brake pedal, Fig. 5, should be depressed to disengage
rear axle when engine is running.
REAR PTO CONTROL
LEVER (STD. 1650A)—NO. 4, FIG. 3
Moving lever to right engages rear PTO and
moving lever to left disengages PTO. Control lever
must be in "Off" position to start engine. Verify
1. Mid Mounted Implement Control Lever
2. 3-Point Hitch Control Lever (1650A)
3. Rear Axle Shift Lever
4. Rear PTO Control Lever
Fig. 3 — Control Console
— 10 —

CAUTION: Verify that engine starter
will not engage without depressing
neutral return pedal.
SEAT CONTROL
- NO. 1, FIG. 7
Seat may be moved forward or backward to match
operator size by pulling seat control rearward and
sliding seat to desired position.
Fore and aft seat position has a great effect on
operator comfort as regards the heel and toe trans¬
mission control pedal. Operator can easily determine
this by sitting on Tractor, placing his foot on pedal
with speed selector lever in No. 4 position and mov¬
ing pedal through its full range. If either “Toe
Down" or "Heel Down" position is uncomfortable
move seat backwards or forward to achieve most
comfortable position.
Additional fore and aft movement of seat can be
made by mounting seat on alternate mounting
holes.
Fig. 7 — Seat Control
1. Fore/Aft Seat Control
2. Safety Switch
3. Alternate Mounting Holes
— 11

TRACTOR OPERATION
Read these instructions carefully before operating Tractorl Become thoroughly familiar with all con¬
trols and their operating characteristics. TAKE TIME TO BE SAFEI
1. Dipstick and Fill Point
2. Drain Plug — Underneath Engine
1. Fuel Shut-Off Valve 3. Fuel In-Line Filter
2. Fuel Tank 4. Air Cleaner
PRE-STARTING
INSPECTION
IMPORTANT: Carefully check Tractor, giving
special attention to lubrication, before start¬
ing engine! An inadequately filled crankcase
can quickly damage an engine.
Check following:
1. Remove dipstick. No. 1, Fig. 8, wipe carefully
with clean cloth, then replace in filler hole, push¬
ing it all the way in. Remove and check oil level.
If not to full mark, fill to this point. DO NOT OVER¬
FILL. Use only lubricants recommended in "Lubri¬
cation" Section. With proper oil level, dipstick will
indicate excessive oil level when dipstick is re¬
moved after stopping engine. Wipe off and reinsert
dipstick and remove again to check.
NOTE: After first five hours of operation with
a new engine, drain and refill crankcase as
recommended. See Page 16.
2. Check oil level of transmission rear axle,
filling if needed.
NOTE: After 10 hours of operation, remove and
replace oil filter, Fig. 14 and Page 16, on side of
transmission under left rear fender. Refill with oil
as recommended in "Lubrication" Section, Page
16.
3. Fill fuel tank with clean, fresh, unleaded
(preferred) or regular grade gasoline.
A CAUTION: Never smoke when fill¬
ing fuel tank. Never fill tank near
sparks or flame. If fuel is spilled on
Tractor, wipe up and allow time to
evaporate before attempting to
start engine.
4. I f there are traces of dirt, water or other con¬
taminants in fuel, as visible through transparent
case containing in-line filter, No. 3, Fig. 9, close
fuel shut off valve, No. 1, and remove and replace
in-line filter. Make certain valve is open at least
two rull turns before attempting to start engine.
OPERATING TIPS
CAUTION: Never operate Tractor
nor any power driven attachments
with shields or guards removed.
Operate Tractor at 3/4 to full throttle for first
five hours. It should be under full load (such as
with Rotary Mower in operation) during entire
break-in period.
Always maintain sufficient engine speed to pre¬
vent lugging. Required engine speed will vary with
implement or load.
Maintain safe operating speeds at all times in
relation to ground conditions.
When leaving Tractor seat, always turn off en¬
gine, make sure all controls are in "Neutral" or
"Off" position, engage parking brake and remove
key.
— 12

IMPORTANT: NEVER OPERATE TRACTOR
WITH HYDRAULIC CONTROL VALVE RE¬
MOVED. TO DO SO WILL QUICKLY RESULT
IN SEVERE DAMAGE TO TRANSMISSION/
STARTING ENGINE
WARM WEATHER
A CAUTION: Make sure all operating
controls of Tractor and implement
are in neutral or disengaged before
attempting to start engine.
1. D epress neutral return brake pedal and dis¬
engage PTO switch and PTO lever. Pedal, switch,
seat and PTO lever are equipped with safety switches.
If pedal is not depressed and PTO controls are not
disengaged, starter motor should not operate. If
operator is not on seat, ignition will be grounded
and engine will not start or run.
2. A dvance throttle approximately 1/4 and pull
choke all the way out.
NOTE: If engine is warm, if may not be nec¬
essary to use choke to start engine.
3. T urn ignition key to start position. Release
key when engine starts. If lights are needed, turn
key to lights position after engine starts.
4. I f engine is cold, allow it to warm up briefly
before engaging transmission or implement drive.
5. A djust choke for smooth operation, pushing
in to off position when engine is warm. See IM¬
PORTANT after “Cold Weather".
COLD WEATHER
A CAUTION: Make sure all operating
controls of Tractor and implement
are in neutral or disengaged before
attempting to start engine.
Engine starting is possible in cold weather pro¬
viding correct weight of oil is used (see "Lubrica¬
tion" Section), battery is fully charged, and proper
starting procedure is followed. Best procedure for
starting at temperatures near or below freezing
is as follows:
1. P ull choke all the way out into full choke
position.
2. M ove throttle lever downward into slow po¬
sition.
3. T ransmission must be exactly in neutral po¬
sition.
4. M ove key switch into start position and hold
until engine starts. As soon as it starts, release key
and slowly push choke in part way.
NOTE: In cold weather, starting motor may
disengage prematurely. This is caused by en¬
gine firing once but failing to continue running.
If this happens several times, engine will be
flooded and it will be necessary to start as
described in Step 5.
5. L eave throttle in slow position, but push choke
in all the way, then turn key to start position and
slowly pull choke out to position which will cause
engine to start and continue running. If engine
falters after shifting into drive, pull choke out part
way until engine runs smoothly, then gradually
push choke back in as engine warms.
See IMPORTANT section following these pro¬
cedures.
IMPORTANT: READ FOLLOWING INFORMA¬
TION CAREFULLY. IT PERTAINS TO PROPER
OPERATION AND PROTECTION OF ELEC¬
TRICAL SYSTEM!
1. Never operate starter motor, Fig. 10, con¬
tinuously for more than 30 seconds. Prolonged
operation can damage starter motor. If engine
does not start after a few seconds, release ign¬
ition key and allow a few moments for starter to
cool before again attempting to start.
2. If battery loses its charge and requires jump¬
ing, make sure alternator is disconnected. To dis¬
connect, pull connector, No. 3, Fig. 11, from rec¬
tifier-regulator, No. 2. Failure to do so can cause
damage to alternator when battery is jumped. When
using a booster battery, always connect cables
positive (+) to positive, and negative (-) to neg¬
ative, Fig. 12. Battery posts are marked. If battery
requires charging, always remove from Tractor.
Reconnect plug in rectifier-regulator after engine
is started.
CAUTION: Gases which emanate
from a battery are explosive. Never
smoke nor allow flame or sparks
near a battery that is being charged.
Fig. 10 — Starter Motor Location
1. Coil 2. Starter
13

Fig. 11 — Rectifier-Regulator
1. Spark Plug 3. Connector
2. Rectifier-Regulator 4. Coil
5. Condenser
3. Never operate Tractor with battery removed,
unless connector from rectifier-regulator is un¬
plugged.
4. If welding, using Tractor frame as a ground,
always unplug connector to rectifier-regulator.
DRIVING TRACTOR
A CAUTION: Carbon monoxide is
odorless, tasteless and deadly. Never
operate Tractor engine in a closed
building.
1. W ith engine warm, depress neutral return
brake pedal. Place rear axle shift lever in high or
low range and speed control lever in desired speed
range. Release neutral return brake pedal.
2. A dvance throttle at least half way and slowly
push forward/reverse pedal in desired direction of
travel.
A CAUTION: Move forward/reverse
pedal slowly until familiar with
Tractor's operating characteristics.
When changing directions, pause
momentarily in neutral. Do not use
excessive force on forward/reverse
pedal. Excessive force can damage
transmission.
An additional adjustment to provide optimum
comfort of extremely large or small operators has
been provided. Refer to Page 22 for adjusting pro¬
cedure.
STOPPING TRACTOR
NOTE: It is characteristic of a Hydra Speed
Transmission to act as a brake for Tractor.
Periodically check parking brake for proper
operation and adjust if necessary. See "Trans¬
mission Test" in "Servicing" Section.
1. Tractor may be stopped by depressing neutral
return brake pedal or removing foot from forward/
reverse pedal.
2. Push down on neutral return brake pedal and
engage parking brake.
NOTE: If an emergency stop is required,
quickly depress neutral return brake pedal.
3. I f Tractor has been working hard, allow en¬
gine to operate at idle for a few moments. This will
allow it to cool more quickly and evenly.
4. T urn key to off and remove from Tractor.
CAUTION: If mounted implements
are attached to Tractor, always
lower them to ground before leav¬
ing seat.
TRAVEL SPEEDS
Fig. 12 — Battery
1. Positive Post (+) 3. Negative Post (-)
2. Battery 4. Spark Plug
5. Coil
Tractor has a two-speed rear axle and infinite speed
range. Low speed range is 0 to 3.3 mph forward and 0
to 2.4 mph in reverse. High speed range is from 0 to
6.5 mph and 0 to 4.8 mph in reverse.
MOVING BY HAND
If it is necessary to move Tractor without engine
power, place rear axle shift lever in neutral and
speed control/parking brake lever into upper notch.
Then move Tractor by hand.
IMPORTANT: Never push or tow Tractor with
another vehicle, over 10 mph.
ATTACHING IMPLEMENTS
Tractor may be equipped with a 3-point lift
linkage (Category 0) for mounted implements
— 14 —

and a heavy-duty drawbar (standard) for puII-
behind implements, Fig. 13.
A CAUTION: Never attach pull-behind
equipment at any point on Tractor
other than drawbar.
For information regarding attachments other
than Rotary Mower, refer to Operator's Manual for
implement. For information regarding installation
and operation of Rotary Mower, refer to Page 28.
Fig. 13 — 3-Point Hitch and Drawbar
— 15 —

LUBRICATION
Proper lubrication is necessary to ensure trouble-free performance throughout the life of unit. Make it a
habit to lubricate at recommended intervals. Use a good quality Multi-Purpose lithium base type grease.
Always clean grease gun and fittings before and after greasing.
IMPORTANT: Never ettempt to operate unit unless it is properly lubricated.
Fig. 14 — Transmission Filter
1. Filter (under left rear fender)
AFTER FIRST FIVE
HOURS OF OPERATION
Drain crankcase and refill after first five hours
of operation. Refer to 25 Hours.
10 HOURS OR DAILY
TRANSMISSION FILTER - FIG. 14
After first 10 hours of operation remove oil filter,
which is located under left rear fender just forward of
the rear tire. Partially fill new filter with Automatic
Transmission Fluid and install on transmission. Hand
Fig. 15 — Engine Crankcase Lubrication
1. Dipstick and Fill Point
2. Drain Plug — Underneath Engine
tighten only. Replace filter after each 100 hours of
operation or annually.
CHECK CRANKCASE - FIG. 15
Remove dipstick and check oil level before start¬
ing engine at beginning of each day's operation.
If oil is not to full mark, add to this point. Do not
overfill. If overfilled, drain until oil is at full mark
on dipstick.
25 HOURS
CHANGE ENGINE CRANKCASE OIL
Drain crankcase with engine stopped and oil
warm.
1. Remove crankcase drain plug, Fig. 15.
2. Replace drain plug and fill crankcase, Fig. 15,
with SAE 30 oil, Service Class SE/CC (see Tem¬
perature Chart).
3. Run engine until warm and check for leaks.
4. Check oil level on dipstick.
TEMPERATURE CHART
Above 30° F. ...SAE 30
30° to 0° F.SAE 10W/30
Below 0° F.SAE 5W/20
CHECK TRANSMISSION AND
REAR AXLE - FIG. 16
NOTE: Do not check oil level when oil is cold.
Operate Tractor until oil is warm (3-5 minutes)
then check level.
Raise seat and check oil level on dipstick. No. 1,
Fig. 16. If not to full mark, add oil as follows:
1. Fill through filler tube until oil reaches full
mark on dipstick.
2. Start engine and operate implement lift lever,
Nq. 2, Fig. 3, up and down four or five times to allow
oil to fill hydraulic cylinder.
3. Drive Tractor forward and reverse through
full range of transmission speed.
4. Stop Tractor, shut off engine, check oil level
and add oil if needed.
5. Repeat Steps 2, 3 and 4 until oil reaches full
mark on dipstick.
16 —

Fig. 16 — Transmission Lubrication
1. Dipstick and Fill Point
50 HOURS
STEERING BELLCRANK
Lubricate fitting, Fig. 17, with two shots of multi¬
purpose lithium base grease.
FRONT WHEEL BEARINGS
Lubricate fittings. No. 1, Fig. 18, with two shots of
multi-purpose lithium base grease. In addition to the
fitting shown in Figure 18, there are two fittings on the
spindle and one at the axle pivot point.
Fig. 17 — Steering Bellcrank Lubrication
1. Grease Fitting
Fig. 18 — Front Wheel Lubrication
1. Grease Fitting
300 HOURS OR ANNUALLY
REPLACING TRANSMISSION
AND REAR AXLE OIL
1. Operate Tractor until oil is warm, remove drain
plug. No. 1, Fig. 19, and drain oil.
2. Clean plug and reinstall in transmission hous¬
ing.
3. Refill system with new oil by following pro¬
cedure on Page 16.
Fig. 19 — Transmission Lubrication
1. Drain Plug

TRACTOR MAINTENANCE
Fig. 20 — Draining Fuel Tank
1. Fuel Shut-Off Valve 3. Fuel In-Line Filter
2. Fuel Tank 4. Air Cleaner
BATTERY - FIG. 12
Check and maintain level of electrolyte every 20
hours of operation, or once each month. Fill slightly
above plates with distilled water. Don't overfill.
Keep battery posts and cable ends clean and lightly
coated with petroleum jelly. Maintain boot on
positive post.
AIR CLEANER — FIG. 20
IMPORTANT: If air cleaner becomes too dirty,
engine will not receive sufficient air to run
properly. Symptoms: Loss of power, flooding,
hard to start and overheating.
The air cleaner has a paper element. It must be
kept clean for proper engine operation and long life.
Clean paper element at least every 50 hours by tapping
it lightly on a flat surface. Replace after every 100
to 200 hours of operation. Clean or replace more
frequently under severe conditions. Hold a light bulb
inside ring to check element. Never wash or oil
paper element. If it becomes plugged and cannot be
cleaned by tapping, it should be replaced.
IMPORTANT: Never run engine with air clean¬
er removed. Dirt will enter engine and score
cylinder.
TIRES AND WHEELS
Keep treads free of debris and tires inflated to
correct pressures. Tires which are overinflated or
underinflated will wear more rapidly. Proper pres¬
sures for various tire sizes are as follows:
Fig. 21 — Transmission Cooling Fan —
Rear View — Seat Raised
1. Transmission Cooling Fan
FRONT
16 x 6.50-8 .8-10 psi
REAR
23x 10.50-12 .6-8 psi
Periodically check front wheel bolts for 30 ft.-
Ibs. torque. Rear wheel hub bolts (10) should be
tightened to 50-60 ft.-lbs. torque. Rear wheel lug
bolts (2) should be tightened to 40 ft.-lbs. torque.
FUEL FILTER - FIG. 20
Fuel filter is an in-line filter. If excessively dirty,
as viewed through transparent case, shut off fuel
valve, remove and replace filter.
Inspect fuel tank at start of each operating season.
If water or dirt is present, clean tank and fuel line.
COOLING SYSTEM
Inspect engine cooling fins frequently and re¬
move any accumulation of debris.
Inspect rotary screen at rear of engine daily for
debris plugging screen. To clean, wipe chaff off rotary
screen on engine.
NOTE: If air pressure is available, blowing air
in reverse direction into fins will dislodge
grass or dirt accumulations.
IMPORTANT: A dirty screen or fins can cause
overheating and damage to engine. Clean them
frequently.
Frequently check transmission fan, Fig. 21, to
see if it is running free and is clean.
A CAUTION: To prevent a fire hazard,
keep engine fins and surrounding
area free of grass, leaves and ex¬
cessive grease.
— 18 —

SERVICING
This Section is concerned with procedures beyond normal maintenance and care. Most of these opera¬
tions require above average mechanical ability. It is recommended that these services be performed at least
annually. Such services are available, with trained personnel, at your Snapper Dealer.
CAUTION: Never operate engine in a poorly ventilated area. Carbon monoxide is odor¬
less, tasteless and deadly.
Never make adjustments on Tractor with engine running unless absolutely necessary. If necessary, ex¬
ercise extreme caution. Do not wear loose clothing that might become entangled in moving parts.
Fig. 22 — Breaker Point Adjustment
1. Implement Drive Clutch- 3. Fuel Pump
2. Breaker Point Case 4. Air Cleaner
Fig. 23 — Cylinder Head Torque Sequence
SPARK PLUG — FIG. 12
Remove plug and check its condition every 100
hours of operation or annually. If gapping is needed,
set at .035". Do not sandblast, wire brush or scrape
plug. If needed, replace plug with Champion RH 10.
BREAKER POINTS
The point cover is located on left front of engine.
Fig. 2l. Check and service at least every 100 hours
of operation or annually. If oxidized, oily or dirty,
clean with a coarse cloth. Do not use emery cloth
or sandpaper. Replace badly pitted or burned points.
To adjust, turn engine over by hand until points
are at maximum opening. Check gap with feeler
gauge. If gap is not .020”, loosen retaining screw
and shift plate until proper gap is obtained. Re¬
tighten screw, then recheck gap when points are
fully open. Replace condenser if necessary.
ENGINE CYLINDER
HEAD BOLTS
Within first 25 hours of operation, cylinder head
bolts must be retightened to 30 ft.-lbs. torque (with
engine at operating temperature). Follow sequence
shown in Fig. 23.
CARBURETOR ADJUSTMENT
— FIG. 24
A CAUTION: Do not touch muffler
while adjusting carburetor.
Lack of power and black sooty exhaust smoke
usually indicates that fuel mixture is too rich. An
overrich mixture may also be caused by a clogged
air cleaner — check this before readjusting car¬
buretor. Fuel mixture may be too lean if engine
skips or backfires at high speed.
MAIN FUEL ADJUSTMENT
For preliminary setting, turn main fuel screw, No.
3, Fig. 24, in clockwise direction until it bottoms
lightly (do not force) then back out two turns. With
engine thoroughly warmed up and running at full
— 19 —