Snapper Pro S120 Series User manual
Not for
Reproduction
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Reproduction
2 SnapperPro.com
Quick Setup List
Setup Procedures
Uncrate the unit.
Connect the battery cables.
Install the ground speed control levers.
Install the seat.
Install the roll bar on the unit.
Check engine oil level.
Check / Fill transmission oil level.
Check tire pressures.
Check mower blade bolt torque.
Check the deck lift rod timing.
Check and level the mower deck.
Check the mower deck drive belt.
Lubricate all grease and oil points.
Check / Add fuel.
Start the engine
PERFORM THE SAFETY CHECKS
Check forLOOSE HARDWARE.
Check allOPERATOR CONTROLS.
PerformSAFETY INTERLOCK SYSTEM CHECK.
Register Product
To register the product: log ontowww.thepowerportal.com, select the appropriate brand, click “Sales &
Marketing”, select the “Product Registration” link, and then select “New Product Registration”. Fill out and submit
the online product registration form.
Snapper Pro is a registered trademark of Briggs & Stratton
Corporation.
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Introduction
The safety warnings provided in this guide and in the
operator’s manual included with the unit contain important
information that must be obeyed when assembling, setting-
up, operating, servicing, transporting, or storing the unit.
These warnings are highlighted by the safety alert triangle
symbol shown above, which signifies that an important safety
message is being provided.
You must read, understand, and follow these warnings
and instructions, and use safe shop and work practices
at all times while working on or around this unit and all
other outdoor power equipment.
SETUP PROCEDURES
Instructions in the Setup Procedures section provide the
information necessary to fully assemble, test, and prepare
the units described above for delivery to your customers. The
location of normal lubrication points are also included in this
section.
The QUICK SETUP LIST is provided in this booklet to help
you identify and check that the items have been performed.
ADJUSTMENT PROCEDURES
Additional information concerning general adjustment
procedures are included in this section.
Although all required lubrication and normal adjustments on
factory-assembled components are done at the factory, this
additional information is provided to assist you in ensuring
that each unit is delivered to the customer in proper working
order.
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Setup Procedures
The items in this section provide the information necessary
to fully assemble, test, and prepare the unit, that these
instructions were included with, for delivery to your customer.
The Quick Setup List provided on page 2 of this booklet
to help you identify and check that the items have been
performed.
Uncrating
1. Locate the transmission release levers (A, Figure 1)
underneath the engine deck of the machine and between
the two rear wheels on the transmission cradle (B).
There is one transmission release lever per transmission.
The transmission release lever opens and closes the
transmission bypass valve.
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2. To open the transmission bypass valves (bypass position)
(C), move the transmission release lever up and pull it
towards the rear of the machine. When the second nut
(D) has passed through the hole, lower the rod down in
the slot so it will stay in the disengaged position. Repeat
the process for the other side of the zero-turn rider.
3. Push down on the parking brake lever to release the
parking brake.
4. Be sure there are no nails or sharp objects on the bottom
skid to puncture the zero-turn rider’s tires. Roll the zero-
turn rider forward off the bottom skid.
5. After moving the zero-turn rider, close the bypass valves
(run position) (E) by raising the transmission release
lever so that the back nut clears the slot, push the lever
towards the front of the machine. Repeat this process for
the other side of the zero-turn rider.
Connect the Battery Cables
WARNING
Battery acid can cause severe burns. Wear protective
gear when handling the battery.
Open flames and sparks can cause battery to explode.
BATTERY SAFETY RULES:
• Battery acid causes severe burns. Avoid contact with
skin.
• Wear eye protection when handling the battery.
• To avoid an explosion, keep flames and sparks away
from the battery, especially while charging.
• When installing the battery cables, connect the
positive (+) cable first and negative (-) cable last.
If not done in this order, the positive terminal can be
shorted to the frame by a tool.
1. Connect the red positive battery cable (B, Figure 2) to the
positive battery post.
2
2. Connect the black negative battery cable (A) to the
negative battery post.
Install the Ground Speed Control Levers
This procedure is only necessary if the ground speed control
levers are not factory-installed on your unit.
There is a LEFT-HAND (A, Figure 3) and a RIGHT-HAND
(B) control lever. When assembled to the base (C), the lever
base (D) should be pointing toward the rear of the machine as
shown in Figure 3.
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1. Remove the ground speed control levers and mounting
hardware from the handle bar box.
2. Install the ground speed control levers (A & B) onto the
control lever base using the hardware (E) supplied in the
box. Prior to tightening the bolts, align the handles with
each other.
Install the Seat
This procedure is only necessary if the seat is not factory-
installed on your unit.
Some models are equipped with two sets of holes in the
seat plate that the seat can be installed in. Use the forward
set of holes to position the operator closer to the front of the
machine and the rear set of holes to position the operator
towards the rear of the machine. Determining what holes
to use is based on the preferred operating position of the
operator.
1. Unpack the seat.
2. Install the seat (A, Figure 4) onto the seat mount plate (B)
and secure with the 5/16 nylock flange nuts (C).
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3. Connect the wire harness (D) to the seat switch (E) that is
located in the bottom of the seat.
Rigid Roll Bar Installation
If you are installing a rigid roll bar onto your unit follow these
instructions:
Install the Roll Bar to the Unit
The roll bar (A, Figure 5) is installed in roll bar pockets which
are part of the main frame of the unit and are located behind
the seat and in front of the engine on both sides of the unit.
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The roll bar has safety decals installed on one side of the roll
bar and when the roll bar is installed on the unit the decals
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must be on the left side of the machine (as determined from
the operating position).
1. Unpack the roll bar and hardware from the box.
2. Make sure that no fuel lines, cables, or parts or the wire
harness are in the way of the roll bar pocket.
3. Have an assistant help you to lift the roll bar and place it
into the roll bar pockets.
4. Install the four (4) 1/2” bolts (B), and 1/2” washers (C)
through the roll bar and the frame of the unit and secure
in place with the 1/2” nylock flange nuts (D).
5. Tighten the installation hardware to 80 ft. lbs. (108 Nm) of
torque.
Folding Roll Bar Installation
If you are installing a folding roll bar onto your unit follow
these instructions:
Assemble the Roll Bar Retainer Pins
1. Unpack the roll bar and hardware from the box.
2. Lock the snap end (A, Figure 6) of the lanyard (B) through
the retainer pin handle (C) and snap together.
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3. Install the lanyard anchor (D) onto the lanyard.
4. Install the hair pin (E) onto the loop end (F) of the lanyard
as shown in Figure 6.
Install the Roll Bar to the Unit
The roll bar assembly is installed in the roll bar pockets which
are part of the main frame of the unit and are located behind
the seat and in front of the engine on both sides of the unit.
1. Assemble the top loop (A, Figure 7) to the left upright
tube (B) and the right upright tube (C) by loosely installing
the 1/2 bolt (D), through the retainer pin assembly (E),
then through the hole in the top loop that is closest to the
rear of the machine, the upright tube, and then loosely
install the 1/2 side lock nut (F).
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2. Fold the roll bar to the down position (A, Figure 8) and
lock in place using the retainer pins and hair pin clips (B).
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3. Make sure that no fuel lines, cables, or parts of the wire
harness are in the way of the roll bar pockets.
4. From the bottom of the roll bar upright tube measure up
8” (G, Figure 7) and mark the distance with a marking tool
or a piece of tape. Repeat for other upright tube.
5. Install the roll bar into the roll bar pockets. The roll bar is
installed so that the safety decals are on the left side of
the machine (as determined from the operator’s position)
facing towards the front of the machine. When the mark
you made is even with the top of the roll bar pocket, the
holes are close to being lined up. If necessary, use a
dead blow hammer and drift pin to assist in lining up the
holes in the roll bar with the holes in the roll bar pocket.
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6. It may be necessary to remove the rear tires of the zero-
turn rider to install the roll bar mounting bolts. To remove
the rear tires jack up the rear end of the zero-turn rider,
secure with jack stands, and then remove the rear tires
from the unit.
7. Loosely install the (4) 1/2” bolts (C, Figure 8), and 1/2”
washers (D), through the frame of the unit, the roll bar,
the outer frame of the unit, and loosely install the 1/2” lock
nuts (E).
8. Tighten the 1/2” hardware that secures the upright tubes
to the frame of the unit to 82 ft. lbs (108 Nm) of torque.
9. Tighten the 1/2” bolt and side lock nuts that secure the
top loop to the upright tubes. Do not over-tighten. The top
loop should pivot snugly with the retainer pins removed.
10. If the rear tires were removed from the unit re-install them
now. The lug nuts should be torqued to 90 ft. lbs. (122
Nm). Remove the jack stands from underneath the zero-
turn rider.
11. Raise the top loop to the upright position and install the
retainer pins and hair pin clips to secure the roll bar in the
raised position.
Check the Engine Oil Level
This model has different engine options. Use Figure 9 to
determine if your model is equipped with a Briggs & Stratton
Commercial Turf Series engine (A, Figure 9) or a Kawasaki
FS engine (B).
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1. Use the dipstick (C) to check the engine oil level. If
necessary add engine oil through the engine oil fill (D).
Check the engine manufacturer’s owner’s manual for oil
recommendations.
Check / Fill Transmission Oil Level
This unit is equipped with two transmission oil tanks. One
transmission oil tank only supplies oil to one transmission.
The level of oil in both transmission tanks must be checked,
and if necessary, filled.
Oil Type: 20W-50 conventional detergent motor oil.
1. Locate the transmission oil tanks (A, Figure 10) by raising
the seat of the unit.
2. Check the oil level when the unit is cold. The oil should be
up to the "FULL COLD" mark (B). If the oil is below this
level, proceed to step #3.
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3. Before removing the tank caps (C), make sure the area
around the tank cap and fill neck of the tank is free of
dust, dirt, or other debris. Remove the tank cap.
4. Add oil up the "FULL COLD" mark.
5. Reinstall the tank caps.
6. After adding oil to the tanks, it may be necessary to purge
air from the hydraulic system. If the unit is not driving
properly perform the Purging the Air from the Hydraulic
System procedure.
Check Tire Pressures
Tire pressure should be checked periodically, and maintained
at the levels shown in the chart. Note that these pressures
may differ slightly from the "Max Inflation" stamped on the
side-wall of the tires. The pressures shown in the chart
provide proper traction and extend tire life.
Tire Pressure
Front 25 psi (1,72 bar)
Rear 15 psi (1,03 bar)
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Check the Mower Blade Bolt Torque
WARNING
Avoid injury! Mower blades are sharp.
• Mower blades are sharp. For your personal safety, do
NOT handle mower blades with bare hands.
• Careless or improper handling of blades may result in
serious injury.
• Blade mounting bolts must each be installed with a
flat washer and then securely tightened. Torque blade
mounting bolts to 120 ft. lbs. (163 Nm).
1. Lock the mower deck in it's highest cutting position.
2. Check that the blades are installed with the tabs
pointing up (A, Figure11)towards the deck as showing
inFigure11.
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3. Check that a flat washer (B) is installed between each
blade and the head of it's mounting bolt (C).
4. Wedge a wooden block (D) between the mower blade
and the mower deck housing to keep the mower blade
from turning. Torque each mower blade mounting bolt to
120 ft. lbs. (163 Nm).
Deck Lift Rod Timing Adjustment
Checking the Deck Lift Rod Timing
1. Park the machine on a flat, level surface. Disengage the
PTO, engage the parking brake, turn off the engine and
remove ignition key. Check that the tires are properly
inflated.
2. To check the lift rod timing, measure and record the
distance between the lift pivots (A, Figure 12) and the rod
pivots (B). Repeat for the other side of the unit.
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3. If the measurements for the rods are equal, no further
adjustment is required. If the measurements are not equal
(greater than 1/8" (3.17 mm) difference), adjustment
is required, continue with Adjusting the Deck Lift Rod
Timing.
Adjusting the Deck Lift Rod Timing
1. Lock the deck lift pedal in the TRANSPORT position.
Remove the cutting height adjustment pin and lower the
mower deck.
2. To ensure that the deck is in the lowest position, push the
pedal by hand towards the rear of the unit and install the
height adjustment pin in the 3" (7.6 cm) position to hold in
place.
3. Block up the mower deck with 2 X 4's (B, Figure 13) until
all hanger chains are slack. The arrow (A) indicates the
front of the mower deck.
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4. To adjust the deck lift rod (A, Figure 14), loosen the jam
nut (B) on the ball joint (C) then remove the 1/2" bolt (D),
washer (E), and 1/2" nylock flange nut (F) fastening the
ball joint (G) to the lift pivot arm (G). Turn the ball joint
clockwise to shorten the distance between the rod pivots
or counter-clockwise to lengthen the distance between
the rod pivots until the measurements between the lift
pivots and the rod pivots are the same. Reinstall the ball
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joint and washer on the lift pivot arm and secure with
the 1/2" bolt and nylock flange nut that were previously
removed. Tighten the jam nut against the ball joint.
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5. Remove the blocks from under the mower deck.
6. Remove the cutting height adjustment pin from in front of
the deck lift pedal arm. Lift the mower deck and reinstall
the adjustment pin in the desired mowing height.
Deck Leveling Adjustment
Before adjusting the deck level, the deck lift rod timing must
be checked and/or adjusted.
Determining if the Deck Leveling Needs to be
Adjusted
1. Park the unit on a flat, level surface. Disengage the PTO,
engage the parking brake, turn the ignition switch to OFF,
and remove the ignition key.
2. Lock the deck lift pedal in the TRANSPORT position.
Place the cutting height adjustment pin in the 4" position
and lower the deck lift pedal until the deck lift arm
contacts the cutting height adjustment pin.
3. Verify that the tires are inflated to the correct pressure.
4. Verify that the mower blades are flat, and not bent or
broken. A bent or broken blade must be replaced.
WARNING
Avoid Injury! Mower blades are sharp.
Always wear gloves when handling blades or working near
blades.
5. See Figure15. Position the outside mower blades so they
face front-to-back.
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6. Measure the front tip (A, Figure15) of the blade from the
cutting edge to the ground.
7. Measure the rear tip (A) of the blade from the cutting
edge to the ground.
8. Repeat the process on the other side of the machine.
• the front measurements should equal 4" (10,2 cm).
• the rear measurements should equal 4-1/4" (10,8
cm)
If the measurements do not equal the measurements as
listed above, adjust the deck leveling.
Deck Leveling Adjustment
1. Place the deck height adjustment pin in the 4" (10,2 cm)
position.
2. Place 2 X 4 blocks under each corner of the mower deck
with the 3-1/2" sides being vertical. Place a 1/4" (0,64 cm)
thick spacer on the top of the rear blocks.
3. Loosen the nuts (D, Figure 16) and allow the front of the
deck to rest on the 2 X 4's. Slide the chains in the slots
until the chains are tight and tighten the nuts.
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4. Loosen the nuts (C) and allow the rear of the deck to rest
on the 2 X 4's and 1/4" spacers. Slide the chains in the
slots until the chains are tight and tighten the nuts.
5. Repeat the process for the other side of the unit.
6. Remove all the blocks and spacers for under the mower
deck.
7. Perform the Determining if the Deck Leveling Needs to
be Adjusted procedure to verify that the deck has been
leveled correctly.
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• If the mower deck does not measure 4" (10,2 cm) in
the front and 4-1/4" (10,8 cm) in the rear, proceed
with step #8.
8. Loosen the jam nut (A) and turn the fine adjustment bolt
(B) to adjust the deck height.
• Turn the bolt clockwise to raise the deck.
• Turn the bolt counter-clockwise to lower the deck.
9. Once the desired measurements are achieved, re-tighten
the jam nut.
10. Repeat the process for the other side of the unit.
Deck Lift Assist Springs
Some models are equipped with deck lift assist springs (A,
Figure 17) that assist the operator in raising the mower deck
with the deck lift pedal. The deck lift assist springs are factory
set to provide optimal lifting performance.
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Although it is fastened with a multi-position anchor, this is not
an adjustment point.
Do NOT attempt to adjust the spring length or lifting
performance will be compromised.
Check the Mower Deck Drive Belt
NOTICE To avoid damaging belt, do not pry over
pulleys.
1. Park the mower on a smooth level surface such as a
concrete floor. Disengage the PTO, engage the parking
brake, turn the ignition switch to OFF, and remove the
ignition key.
2. Lower the mower deck to it's lowest cutting position and
remove the mower deck guards and floor pan to gain
access to the mower deck drive belt.
3. Make sure that the V-side of the belt (A, Figures 18 & 19)
runs in the pulley grooves of the spindle pulleys (D & J)
and the PTO clutch pulley (G). Make sure that the back
side of the belt contacts the face of the front stationary
idler pulley(s) (H), rear stationary idler pulley (I), and
the adjustable idler pulley (F). Make sure that the belt is
correctly routed through the belt guides (E & K).
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WARNING
Use extreme caution when rotating the idler arm with the
breaker bar, due to the increased tension in the spring
as the idler arm is being rotated. Injury may result if the
breaker bar is prematurely released while the spring is
under tension.
4. If the belt is not properly seated, use a 1/2” breaker bar
(B), and place the square end in the opening in the idler
arm (C).
5. Carefully rotate the breaker bar clockwise, pulling the
adjustable idler pulley away from the idler arm stop (L).
This will relieve the tension on the belt exerted from the
idler arm.
6. Re-seat the belt and carefully release the tension on the
breaker bar.
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