2.2 SIGNAL WORDS ..........................................................................................................................................3
2.3 BEFORE OPERATION CONSIDERATIONS ................................................................................................3
(Scag Model SFZ36-17KA) ......................................................................................17 HP (Spec.#FH541V-AW00-R)
(Scag Model SFZ48-19KA, SFZ52-19KA) ..............................................................19 HP (Spec.# FH580V-AW00-R)
(Scag Model SFZ36-20BS) ........................................................................................20 HP (Spec# 40G7770117B1)
(Scag Model SFZ48-26BS, SFZ52-26BS) .................................................................26 HP (Spec.# 44P7770117E1)
(Scag Model SFZ61-28BS) ........................................................................................28 HP (Spec# 49M777930308)
Type ..........................................................................................................4 Cycle Gasoline, Twin Cylinder, Vertical Shaft
Cylinders .....................................................................................................................................2 with Cast Iron Sleeves
Governor ........................................................................Mechanical Type with Variable Speed Control Set At 3600 RPM
Battery ....................................................................................................................................................................12 Volt
Charging System ...............................................................................................................................................Alternator
Charging Output:
Briggs & Stratton .................................................................................................................................12 Volt, 16 Amp
Kawasaki .............................................................................................................................................12 Volt, 13 Amp
System Polarity .......................................................................................................................................Negative Ground
Starter .......................................................................................................12 Volt Electric Ring Gear Type, Key Operated
Drive System .........................................................Hydraulic Drive with Two Hydro-Gear™ Integraded Zero-Turn Axles
Scag Model (SFZ36, SFZ48, SFZ52) .......................................................................................Hydro-Gear™ ZT-3100
Scag Model (SFZ61) ................................................................................................................Hydro-Gear™ ZT-3400
Steering/Travel Control ...........................................................................................Twin Lever Fingertip Steering Control
with Individual Control to Each Wheel with Gas Spring Dampers
Parking Brake ...................................................................Lever Actuated Linkage to Brakes on Both Drive Wheel Axles
Wheels:
(2) Front Caster ..............................................................................................................................11 X 4.5-5 Two-Ply
Front Caster.......................................................................................................................................................25 PSI
Fuel Tank ........................................Single 6.5-Gallon Seamless Polyethylene Tanks with Large Opening and Fuel Cap
Seat ....................................................................................................Padded, Thick Cushion with Extra Spring Support
Cutter Deck Belts ...................................................................B-section with Kevlar Cord. Self-Adjusting, Self-Tightening
Electric Clutch Type ................................................................................................Ogura Heavy Duty PTO Clutch Brake
HYDRAULIC SYSTEM3.5
Hydraulic Oil Filter .........................................................................................................40 Micron Spin-on Element Type
Acres Per Day ..............................................................................14 ............................18.6/20.2 ..............................23.7
The preceding chart will aid you in determining how many acres your Scag mower will cut per day. The chart is an
estimate based on 8 hours per day cutting time at 6 MPH with a 20% allowance for overlap and turns.
11
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Section 4
CAUTION
Do not attempt to operate this mower unless you
have read this manual. Learn the location and
purpose of all controls and instruments before
you operate this mower.
CONTROLS AND INSTRUMENT 4.1
IDENTIFICATION
Before operating the mower, familiarize yourself with all
mower and engine controls. Knowing the location, function
and operation of these controls is important for safe and
efficient operation of the mower.
OPERATING INSTRUCTIONS
Ignition Switch (Figure 4-1).1. The ignition switch
is used to start the engine and has three positions;
OFF, ON, and START.
Mower Deck Switch (Figure 4-1). 2. Used to engage
and disengage the mower drive system. Pulling up
on the switch will engage the deck drive. Pushing
down on the switch will disengage the deck drive.
Engine Choke Control (Figure 4-1).
3. Used to start
a cold engine.
Engine Throttle Control (Figure 4-1).4. Used to
control the engine speed. Pushing the lever forward
increases engine speed. Pulling the lever back
decreases engine speed. Full back position is the
IDLE position. Full forward is the cutting position.
Fuel Gauge (Figure 4-1).
5. Indicates the amount of
fuel in the fuel tank.
CUTTER DECK
RELEASE LEVER
RIGHT STEERING
CONTROL
CUTTING HEIGHT
ADJUSTMENT
FAST
SLOW
MOWER DECK
PULL OUT
TO ENGAGE
PUSH IN
TO
DISENGAGE
DECK LIFT
PARKING
BRAKE
LEFT STEERING
CONTROL
DUMP VALVE
DUMP VALVE
IGNITION
SWITCH
MOWER
DECK
SWITCH
ENGINE
THROTTLE
CONTROL
ENGINE
CHOKE
CONTROL
HOUR METER
SEAT HOLD DOWN
RELEASE LATCH
FUEL GAUGE
SEAT BELT
Controls and InstrumentsFigure 4-1.
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Section 4
Hourmeter (Figure 4-1).6. Indicates the number of
hours the engine has been operated. It operates
whenever the engine is running. Has preset
maintenance reminders for engine and hydraulic
system oil changes. Will start flashing scheduled
maintenance 2 hours before preset time and
continue flashing until 2 hours after. Automatically
resets.
Fuse Holders (Figure 4-1).
7. Two 20-amp fuses
protect the mower’s electrical system. To replace
fuses, pull fuse out of the socket and install a new
fuse.
Left Steering Control (Figure 4-1).
8. Used to control
the mower's left wheel when traveling forward or
reverse.
Right Steering Control (Figure 4-1).9. Used to
control the mower's right wheel when traveling
forward or reverse.
Parking Brake Control (Figure 4-1). 10. Used to
engage and disengage the parking brakes. Pull the
lever back to engage the parking brakes. Push the
lever forward to disengage the parking brakes.
Dump valve Control Levers (Figure 4-2). 11. Located
on the left and right side of the bumper, used to
“free-wheel” the mower. Rotating the levers forward
into the notch (towards the front of the mower) allows
the unit to move under hydraulic power. Rotating the
levers backward to the notch (towards the rear of
the mower) allows the mower to be moved by hand
(free-wheeling).
DUMP VALVE
CONTROL LEVER
"FREEWHEEL" POSITION
"DRIVE" POSITION
2007 SFZ DVL
Dump Valve ControlFigure 4-2.
Deck Lift Foot Lever (Figure 4-1). 12. Used to raise
and lower the cutter deck.
Cutting Height Adjustment (Figure 4-1).13. Used to
set the cutter deck at the desired cutting height.
Deck Release Lever (Figure 4-1).
14. Used to lock the
cutter deck in the transport position. Push the foot
pedal forward and pull back on the release lever to
release the cutter deck for normal mowing.
Seat Belt (Figure 4-1).
15. Used to secure the operator.
Seat belt must be worn at all times during operation.
Seat Hold Down Release Latch (Figure 4-1).16.
Located behind the seat. Used to secure the seat
in the operator's position. Release the latch to gain
access under the seat.
SAFETY INTERLOCK SYSTEM4.2
The mower is equipped with a safety interlock system that
prevents the engine from starting unless the deck drive is
disengaged, the steering control levers are in the neutral
position and the operator is in the seat. The interlock
system shuts off the engine if the operator leaves the seat
with the steering control levers not in the neutral position
and/or the cutter blades engaged and the parking brake
not engaged.
WARNING
Never operate the mower with the interlock
system disconnected or malfunctioning. Do not
disengage or bypass any switch; injury to yourself
and others or property damage could result.
INITIAL RUN-IN PROCEDURES4.3
FIRST DAY OF USE OR APPROXIMATELY 20 HOURS
Check all belts for proper alignment and wear at 2, 4 1.
and 8 hours.
Change the engine oil and oil filter after the first 20
2.
hours of operation. (See Section 7.4.)
Check hydraulic oil level in reservoir. (See Section
3.
7.3.)
Check for loose hardware. Tighten as needed.4.
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Section 4
Check interlock system for proper operation. (See 5.
Section 4.2.)
Check tire pressure. Adjust pressure if necessary.
6.
(See Section 7.10.)
STARTING THE ENGINE4.4
CAUTION
DO NOT USE STARTING FLUIDS. Use of starting
fluids in the air intake system may be potentially
explosive or cause a “runaway” engine condition
that could result in engine damage and/or
personal injury.
Be sure the fuel shutoff valve, located behind the 1.
operator's seat, is completely open.
Sit in the operator’s seat, fasten seat belt and place 2.
the steering control levers in the neutral position.
Engage the parking brake.
3.
Place the PTO switch in the disengaged position.4.
If the engine is cold, choke the engine as needed.5.
Move the engine throttle control to about half engine 6.
speed.
Turn the ignition key to the START position and 7.
release the key as soon as the engine starts. Do
not hold the key in the START position for more
than 15 seconds at a time. Allow at least 60
seconds between each cranking attempt to prevent
overheating of the starter motor. Prolonged cranking
can damage the starter motor and shorten battery
life.
Allow engine to warm before operating the mower.
8.
GROUND TRAvEL AND STEERING4.5
- IMPoRtANt -
If you are not familiar with the operation of a
machine with lever steering and/or hydrostatic
transmissions, the steering and ground speed
operations should be learned and practiced in
an open area, away from buildings, fences, or
obstructions.
Learn the operation on flat ground before operating
on slopes.
Start practicing with a slow engine speed and slow
forward travel.
Learn to feather the steering controls to obtain a
smooth operating action.
Practice operating the mower until you are
comfortable with the controls before proceeding
to mow.
FORWARD TRAvEL
To travel forward with the mower, disengage the parking
brake, pull levers inward out of the neutral lock position
and slowly push the steering control levers forward an
equal distance. The further the steering control levers are
pushed forward the greater the forward speed will be. To
increase the speed, push the steering control levers further
forward and to decrease the speed, pull the steering control
levers back.
To stop the forward travel, pull the steering control levers
back to the neutral position.
To steer the mower left while traveling forward, pull the left
steering lever back. The further the lever is pulled back, the
quicker the mower will turn left.
To steer the mower right while traveling forward, pull the
right steering control lever back. The further the lever is
pulled back, the quicker the mower will turn right.
- Note -
Smooth operation of the steering levers will
produce smooth mower operation. While learning
the operation of the steering controls, keep the
travel speed low.
- IMPoRtANt -
Do not travel forward over a curb. The mower will
hang up on the curb. Raise the deck and travel
backwards over the curb at a 45 degree angle.
(See Figure 4-1 item 12 for cutter deck raising
description.)
14
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Section 4
REvERSE TRAvEL
CAUTION
Disengage power to the mower before backing
up. Do not mow in reverse unless absolutely
necessary and then only after observation of the
entire area behind the mower.
CAUTION
Before backing up, observe the rear for persons
and obstructions. Clear the area before backing
up. Possible injury or property damage could
occur.
To travel in reverse, pull levers inward out of the neutral
lock position and pull both handles back. Keep the travel
speed low while traveling in reverse.
- Note -
The mower may not travel straight in reverse.
Slight adjustments may need to be made using
the steering controls.
To steer left while traveling in reverse, allow the left steering
control lever to move forward. The further the control is
allowed to move forward, the quicker the mower will turn
left.
To steer right while traveling in reverse, allow the right
steering control lever to move forward. The further the
control is allowed to move forward, the quicker the mower
will turn right.
To stop the reverse travel, allow the steering control levers
to return to the neutral position. If the mower is to be parked,
place the handles in the neutral lock position and engage
the parking brake.
ENGAGING THE DECK DRIvE (CUTTER 4.6
BLADES)
Set the throttle at about 3/4 speed. Do not attempt to 1.
engage the deck drive at high speed as this shortens
the electric clutch life — use only moderate engine
speed when engaging the deck drive.
Engage the deck drive by pulling out on the yellow
2.
switch, located on the instrument panel, to the
engage position. See Figure 4-3.
390S0138
PULL UP TO ENGAGE
PUSH DOWN TO DISENGAGE
Cutter engage SwitchFigure 4-3.
- Note -
A squealing noise may be heard when engaging
or disengaging the deck drive. It is caused by the
electric clutch plates meshing as the mower comes
up to speed. This is normal.
To disengage the deck drive, push the switch in to 3.
the disengage position.
Always operate the engine at full throttle to properly 4.
maintain cutting speed. If the engine starts to lug
down, reduce the forward speed and allow the
engine to operate at maximum RPM.
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Section 4
HILLSIDE OPERATION4.7
WARNING
DO NOT operate on steep slopes. To check a slope,
attempt to back up it (with the cutter deck down).
If the machine can back up the slope without the
wheels slipping, reduce speed and use extreme
caution. Under no circumstances should the
machine be operated on slopes greater than 15
degrees. ALWAYS FOLLOW OSHA APPROvED
OPERATION.
This mower has been designed for good traction 1.
and stability under normal mowing conditions.
However, caution must be used when traveling on
slopes, especially when the grass is wet. Wet grass
reduces traction and steering control. The Roll-Over
Protection System is standard equipment for this
machine. See Section 2.5, page 6 of this manual for
further details.
Some areas may need to be mowed with a walk-2.
behind mower or string trimmer
To prevent tipping or loss of control, do not start or 3.
stop suddenly, avoid unnecessary turns and travel
at reduced speed. If tires loose traction, disengage
blades and proceed slowly off the slope.
Avoid sudden starts when mowing uphill. Sudden
4.
starts may cause the machine to tip backwards.
Loss of traction may occur when traveling down hill.
5.
Weight transfers to the front of the machine and
may cause the drive wheels to slip causing loss of
braking or steering.
Keep tires properly inflated.6.
Use caution when operating the mower on an incline 7.
with the optional grass catcher installed.
PARKING THE MOWER4.8
Park the machine on a flat, level surface only. Do not 1.
park the machine on an incline.
Place the steering control levers in the neutral
2.
position.
Disengage the cutter blades.3.
Slow the engine to idle speed.4.
Engage the parking brake.5.
Turn the ignition key to the OFF position and remove 6.
the key.
AFTER OPERATION4.9
Wash the entire mower after each use. Do not 1.
use high pressure spray or direct the spray onto
electrical components.
- IMPoRtANt -
Do not wash a hot or running engine. Cold water
will damage the engine. Use compressed air to
clean the engine if it is hot.
Keep the entire mower clean to inhibit serious heat 2.
damage to the engine or hydraulic oil circuit.
Check the drive belts for proper alignment and any
3.
signs of wear. Correct and adjust if necessary.
DANGER
To avoid injury from burns, allow the mower
to cool before removing the fuel tank cap and
refueling.
After the mower has cooled down, fill the fuel tank
4.
with fresh, clean fuel at the end of every day of
operation. See Engine Owner's Manual for proper
octane requirements.
Check the tire pressure. Adjust pressure if 5.
necessary.
REMOvING CLOGGED MATERIAL4.10
DANGER
ROTATING BLADES
NEvER PUT YOUR HANDS INTO THE DISCHARGE
CHUTE FOR ANY REASON!
Shut off the engine and remove the key and
only then use a stick or similar object to remove
material if clogging has occurred.
16
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Section 4
If the discharge chute becomes clogged, shut off 1.
the engine and remove the ignition key. Using a stick
or similar item, dislodge the clogged material. Then
resume normal mowing.
MOvING MOWER WITH ENGINE 4.11
STOPPED
To “free-wheel” or move the mower around without the
engine running, place the dump valve levers in the FREE-
WHEEL position. See Figure 4-2, page 13. Disengage the
parking brake and move the mower by hand. When the
machine is in the desired position, engage the parking
brake and place the dump valve levers in the DRIVE
position. The dump valve levers must be returned to the
DRIVE position to drive the mower.
RECOMMENDATIONS FOR MOWING4.12
Do not mow with dull blades. A dull blade will tear 1.
grass, resulting in poor lawn appearance and
reduced mowing power.
WARNING
DO NOT operate without Discharge Chute,
Mulching Kit, or entire Grass Catcher properly
installed.
The discharge chute must not be removed and 2.
must be kept in the lowest position to deflect grass
clippings and thrown objects downward. Direct the
side discharge away from sidewalks or streets to
minimize cleanup of clippings. When mowing close
to obstacles, direct the discharge away from the
obstacles to reduce the chance of property damage
by thrown objects.
Cut grass when it is dry and not too tall. Do not cut
3.
grass too short (cut off 1/3 or less of existing grass
for best appearance). Mow frequently.
Keep mower and discharge chute clean.4.
When mowing wet or tall grass, mow the grass twice. 5.
Raise the mower to the highest setting for the first
pass and then make a second pass to the desired
height.
Use a slow travel speed for trimming purposes.6.
Operate the engine at full throttle for best cutting. 7.
Mowing with a lower RPM causes the mower to tear
the grass. The engine is designed to be operated at
full speed.
Use the alternate stripe pattern for best lawn
8.
appearance. Vary the direction of the stripe each
time the grass is mowed to avoid wear patterns in
the grass.
ADJUSTING CUTTING HEIGHT4.13
The mower deck can be adjusted from a height of 1 inch
to 4-1/2 inches at 1/4-inch intervals. To adjust the cutting
height:
WARNING
DO NOT adjust the cutting height with the mower
blades rotating. Disengage the power to the cutter
blades and then adjust cutting height.
Disengage the power to the cutter blades.1.
Push the cutting height adjustment foot pedal all 2.
the way forward using your right foot until it locks in
place. See Figure 4-4.
CUTTER DECK
RELEASE LEVER
CUTTING HEIGHT
ADJUSTMENT
DECK LIFT
Adjusting Cutting HeightFigure 4-4.
17
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Section 4
Insert the pin into the cutting height index at the 3.
desired cutting height. Push forward on the deck
lift foot lever, hold in place and lift up on the deck
release lever. See Figure 4-4. Slowly release the foot
pedal. A deck height decal is located on the cutting
height index as an aid in adjusting the deck to the
desired height. See Figure 4-4.
TOWING (OPTIONAL HITCH 4.14
ACCESSORY) (NOT AvAILABLE FOR
SFz36)
NEVER allow children or others in or on towed 1.
equipment.
Tow only with a machine that has a hitch designed
2.
for towing. Do not attach towed equipment except at
the hitch point.
Follow manufacturer's recommendations for weight 3.
limit for towed equipment. 250/lbs. maximum towing
weight.
NEVER TOW ON SLOPES. The weight of the towed 4.
equipment may cause loss of traction and loss of
control.
Travel slowly and allow extra distance to stop.
5.
Zero-turning with a trailer attached could cause 6.
damage to the trailer or mower.
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