ATTACHMENT
OPERATOR’S
MANUAL
Turbo Vacuum System
For 48” Mower Decks
Mfg. No. Description
1694496 Turbo Vacuum Collection System (for use with Legacy XL / 2000 / 2900 Series)
1726315-02
Rev 01/2007
TP 100-3922-02-AT-SMA
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Table of Contents
Safety Rules & Information
Attaching & Removing the Turbo
General Warnings............................................2
Safety Decals ..................................................2
Attaching the Turbo..........................................7
Removing the Turbo ........................................7
Adjustments.....................................................8
Storage............................................................8
Front Bracket Hole Template ...........................9
General Operating Information
Before Operation .............................................3
Mowing with the Turbo.....................................3
Operating without the Turbo ............................3
Recommended Accessories............................3
After Operation ................................................3
Hardware Identification
& Torque Specifications....................................10
Initial Setup & Assembly
Prepare Deck, Belt Cover & Support Arm .......4
Install Stacked Arbor Pulley.............................4
Assemble & Install Deflector............................5
Assemble Turbo...............................................6
NOTE: In these instructions, “left” and “right” are
referred to as seen from the operating position.
1
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Safety Rules
& Information
Read these safety rules and follow them closely. Failure to obey these rules could result in loss of control of
unit, severe personal injury or death to you, or bystanders, or damage to property or equipment. This mow-
ing deck is capable of amputating hands and feet and throwing objects. The triangle
in text signi-
fies important cautions or warnings which must be followed.
GENERAL WARNINGS
● Know the tractor controls and how to stop quickly.
● If the mower stalls or the turbo blower chute plugs:
1. disengage the electric clutch (PTO);
READ THE TRACTOR OPERATOR’S MANUAL.
2. stop the engine and remove the key;
3. set the parking brake, and wait for all moving parts
to stop.
4. Remove the foreign object or clear the chute with
a piece of wood before restarting the engine.
NEVER PLACE HANDS INTO BLOWER HOUS-
ING TO CLEAR JAMMED OBJECT. BLOWER
MAY ROTATE WHEN OBJECT IS REMOVED.
● Read and obey all safety decals.
● Only allow responsible adults, who are familiar with
the instructions, to operate the unit.
● Disengage the electric clutch (PTO). Shut off the
engine and wait for all moving parts to stop before
attaching, adjusting, or disconnecting any part of the
collection system.
● Check the collection system to make sure it is bolted
● For added tractor stability and to prevent tipping or
loss of control:
tightly to the tractor.
● DO NOT operate the mower without either the entire
a. Use reduced speed on uneven ground and when
turning corners.
grass catcher or the deflector in place.
b. Reduce loads on hillsides. It is recommended that
the collection system be kept only half full when
negotiating any slopes. Start mowing on slopes
when the collection system is empty.
c. Mow up and down the face of slopes; never
across the face of any slope.
● Turn off the PTO switch to disengage the blades
when not mowing.
● DO NOT mow in reverse. Always look down and
behind before and while travelling in reverse.
● DO NOT turn sharply when travelling alongside a
building or any object. Slow down before turning.
● When operating on slopes, use front counterweights.
On slopes over 15% (8.5°), use two rear wheel
weights in addition to front counterweight. Never
operate on slopes greater than 30% (16.7°).
● DO NOT carry passengers on the tractor.
● When blower assembly is removed from the mower
deck, the deflector must be properly installed.
These labels are easily applied and will act as a constant
visual reminder to you, and others who may use the
equipment, to follow the safety instructions necessary for
safe, effective operation.
SAFETY DECALS
This unit has been designed and manufactured to pro-
vide you with the safety and reliability you would expect
from an industry leader in outdoor power equipment
manufacturing.
Read and obey all operation and warning decals.
Although reading this manual and the safety instructions
it contains will provide you with the necessary basic
knowledge to operate this equipment safely and effec-
tively, we have placed several safety labels on the unit to
remind you of this important information while you are
operating your unit.
Danger Decal - P/N 1704277
All DANGER, WARNING, CAUTION and instructional
messages on your rider and mower should be carefully
read and obeyed. Personal bodily injury can result when
these instructions are not followed. The information is for
your safety and it is important! The safety decals below
are on your rider and mower.
WARNING
• This shield must be
DANGER
ROTATING
in place at all times
BLADES
during operation.
SHUT OFF MOWER
• Mower deflector
AND TRACTOR
must be in down
BEFORE SERVICING
OR CLEANING BLOWER
position when
AND MOWER.
blower is removed.
1700259
1717291
If any of these decals are lost or damaged, replace them
at once. See your local dealer for replacements.
Danger Decal -
P/N 1704276
Warning Decal -
P/N 1700259
2
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General
Operating Instructions
BEFORE OPERATION
Clear the lawn of all sticks, stones, wire and other debris
which may be caught or thrown by the mower blades.
Check grass condition. If wet, wait until later in the day.
If grass is wet, as the grass catcher is likely to become
plugged.
For efficient grass collection, air circulation under
the mower deck, through the chute and into the
grass catcher or cart is very important.
For this reason, BEFORE YOU BEGIN MOWING you
should make certain the underside of the mower and the
underside of the catcher lid are free from grass and
debris.
Make sure that there is a snug fit between mower deck,
blower housing, tubes, and grass catcher cover.
OPERATING WITHOUT THE TURBO
MOWING WITH THE TURBO
Always operate with throttle at full speed when mowing.
If you need to mow without the turbo vacuum collector in
place (for instance, if the grass is too wet to bag, but
must be mowed)—you must remove the turbo blower
from the mower deck, and properly position the deflector
BEFORE you begin mowing.
Grass should be cut often, and not too short. If grass is
too long or lush it may be necessary to keep ground
speed to a minimum or to cut only half the width of the
mower to prevent clogging. If grass is long, operate with
mower in high cutting position for first pass, cutting again
in a lower position on a second pass.
WARNING
To operate without the collection system, the
blower assembly MUST be removed and the
deflector MUST be in the down position.
To check if grass is flowing up tube, view tube. Do not
open cover with mower engaged.
If a large amount of cut grass is spilling out from under
deck, the tube may be plugged or the catcher may be
full— discontinue mowing, stop the tractor, disengage
the PTO and then empty the catcher or clear the tube.
The deflector is spring loaded. when removing
the blower, hold the deflector up; then allow the
deflector to go down into the normal operating
position.
RECOMMENDED ACCESSORIES
WARNING
When operating on slopes with a rear attachment, use
front counterweights. If you will be operating on slopes
over 15% (8.5°) two rear wheel weights are recommend-
ed in addition to the front counterweights. Never operate
on slopes greater than 30% (16.7°).
ALWAYS shut off the tractor. disengage the PTO,
and allow all moving parts to stop BEFORE
disconnecting or clearing tube, or emptying
catcher.
Before leaving the operator’s position for any
reason, engage the parking brake, disengage the
PTO, stop the engine and remove the key.
AFTER OPERATION
The turbo blower housing and tube should be removed
for cleaning. Remove the tube by unlatching the lower
tube rubber band from blower housing. When reattach-
ing, make sure there is a snug fit between the mower
deck, turbo blower housing, and grass catcher.
To reduce fire hazard, keep the engine, tractor
and mower free of grass, leaves and excess
grease. Do not stop or park tractor over dry
leaves, grass or combustible materials.
3
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Initial
Setup & Assembly
C
B
A
B
G
A
D
Figure 1. Deflector, Stone Guard, and Cover
A. Deflector
B. Stone Guard
C. Belt Cover
E
INITIAL SETUP & ASSEMBLY
Prepare the Deck, Belt Cover, & Support
Arm Assembly
F
C
1. Remove the mower deck from the tractor. Refer to
he tractor operator’s manual for mower installation
and removal procedures.
Figure 2. Assemble the New Cover
A. Belt Cover
E. Hinge
2. Remove the deflector (A, Figure 1) and correspond-
ing mounting hardware from deck. Also Remove the
left side belt cover (C). Clean all mounting holes.
B. Knob
C. Left Hand Cover
D. Locknut, #10-32
F. Screw, #10-32 x 3/8
G. 5/16 Push nut
3. Assemble the hinge (E) to the new belt cover (A)
using hardware provided (D, F) as shown in Figure 2.
Insert the knob (B) through the cover (A) and secure
with 5/16 push nut (G). Assemble the belt cover (A)
and knob (B) to the left-hand mower cover (C).
Install Stacked Arbor Pulley
1. Roll the mower drive belt off the left arbor pulley.
2. Remove the left side arbor pulley by blocking the left-
hand mower blade with a wood block and removing
the arbor pulley capscrew. Discard the capscrew but
retain the other hardware.
3. See Figure 5. Install the double stacked pulley (A)
from turbo kit, with the larger pulley on the bottom.
Use the longer capscrew (B) supplied with the kit
along with the original hardware.
4. Block the mower blade with wood and tighten cap-
screw to 50-70 ft. lbs. (68-76 Nm).
5. Re-install the mower drive belt on the lower pulley.
Figure 3. Install Stacked Arbor Pulley
A. Pulley Assy.
C. Lockwasher
B. Capscrew, 7/16 x 2-1/4 D. Washer
4
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Initial Setup & Assembly
5. Attach the back pivot bracket (C) to the existing hole
in the mower deck formerly used to mount the deflec-
tor rod. Attach using 3/8-16 x 7/8 carriage bolts,
lockwashers, and nuts inserted through hole “P” (See
Figure 4).
Assemble & Install Deflector
1. The two holes for mounting the deflector must be
drilled out. Turn the deflector over, and notice that
these two holes are started. Finishing drilling the two
11/32 inch holes (See Figure 4).
6. Use the hinge rod (D) to align the front and back pivot
brackets (B and C) as shown.
2. See Figure 4. Connect the deflector (A) to the deflec-
tor brackets (O) with two 5/16-18 x 7/8 screws (F),
5/16 lockwashers (G), and 5/16 nuts (H). Install
screws from the bottom.
7. Using the bracket for guidance, drill out hole “Q”
using a 13/32” drill.
8. In the new drilled hole, install /8-16 x 1 capscrews
(L), lockwasher (M), and nut (N). Install capscrew
from the bottom.
3. Install two 7/16-14 x 2-1/4 capscrews (I), 7/16 lock-
washers (J), and 7/16 nuts (K) as shown. Capscrews
must be installed with lockwashers and nuts on the
inside as shown in Figure 4.
9. Install the deflector (A) assembly. Insert the rod (D)
through the brackets (B, O, and C) and spring (E).
Secure with a cotter pin at each end.
4. Mark and drill two 13/32 holes (S & R) in mower
deck. Use Template on page 9. Attach the front pivot
bracket (B) using 3/8-16 x 1 carriage bolts, lock-
washers, and nuts inserted through hole “S” see
Figure 4).
10. Hook the spring on the rear deflector bracket (O),
pre-load one turn, and hook second end on back
pivot bracket (C).
N
C
M
E
Hole “P”
Hole “Q”
B
J
K
N
L
I
M
O
Hole “R”
D
H
G
L
O
A
Hole “S”
F
Drill These 11/32” Holes From Back
Figure 4. Deflector
A. Deflector
F. Capscrew,
5/16-18 x 7/8
G. Lockwasher,
5/16
I. Capscrew,
L. Capscrew,
B. Pivot Bracket, Front.
C. Pivot Bracket, Back
D. Hinge Rod
7/16-14 x 2-3/4
J. Lockwasher, 7/16
K. Nut, 7/16-14
3/8-16 x 1
M. Lockwasher, 3/8
N. Nut, 3/8-16
E. Spring
H. Nut, 5/16-18
O. Deflector Bracket
5
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Initial Setup & Assembly
Assemble Turbo
1. Assemble the turbo. Install the bracket (A, Figure 5)
and upstop (B) as follows:
E
NOTE: Upstop (B. Figure 5) has short and long leg. The
difference is the thickness of bracket (A). Place long leg
on housing and short leg on top of bracket. Washer(s)
may need to be added under each leg of upstop if deflec-
tor contacts housing. See ADJUSTMENTS.
D
D
A
G
B
2. Install 1/4-20 x 7/8 capscrew (C) from inside turbo
housing. Place upstop (B) on capscrew and secure
with I/4-20 locknut (D).
3. Install 1/4-20 x 2-1/4" full thread capscrew (E)
through upstop (B), bracket (A), and housing. Secure
with 1/4-20 locknut. End of capscrew should touch
bottom housing surface.
4. Install 1/4-20 x 3/4 capscrew (F) to secure bracket to
housing. Secure with 1/4-20 locknuts (F).
F
Complete INITIAL INSTALLATION by proceeding with
the steps listed under NORMAL INSTALLATION.
C
D
Figure 5. Assemble Turbo
A. Bracket
B. Upstop
C. Capscrew, 1/4-20 x 7/8
D. Locknut, 1/4-20
E. Capscrew, 1/4-20 x 2-1/4
F. Capscrew, 1/4-20 x 3/4
G. Speednut, 5/16
Upstop Capscrew
Bracket Capscrews
Figure 6. Bracket Hardware Placement
6
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Attaching &
Removing the Turbo
ATTACHING THE TURBO
1. Lift up the deflector.
WARNING
The deflector is spring loaded. when attaching or
removing the blower, hold the deflector up; then
allow the deflector to go down into the normal
operating position.
2. Engage the stone guard hook at the bottom of the
turbo as shown in Figure 8.
3. Slide turbo assembly as far rearward as possible so
that the front turbo edge is tight against the front
mower deck edge. Secure the turbo with the hair pin
clip (B, Figure 7).
D
E
4. Move the idler release lever (C) to release belt ten-
sion.
C
5. Route the belt as shown in Figure 10. Make sure it is
seated in all pulley grooves. The belt must be routed
to the inside of the 2-1/4" capscrew as shown in
Figure 10.
A
6. Close the belt cover (E. Figure 7) and tighten the
knob into the pal nut.
7. Make sure that deflector rests on upstop (D, Figure 9)
and does not contact the turbo housing. If deflector
contacts housing, use washer(s) as shims under the
upstop legs to increase clearance.
B
Figure 7. Mount Turbo
A. Mounting Plate
B. Hairpin Clip
D. Upstop
E. Belt Cover
NOTE: After initial assembly, it is not necessary to
remove mower deck when removing or installing turbo
assembly.
C. Idler Release Lever
REMOVING THE TURBO
NOTE: After initial assembly, it is not necessary to
remove mower deck when removing or installing turbo
assembly.
For operation without turbo, the deflector must be
properly installed in the down position and retained
by the spring latch.
Figure 8. Engage Stone Guard Hook
1. Disconnect the discharge tubes.
2. Unscrew the belt cover knob (C, Figure 9) and open
the cover.
WARNING
3. Move the idler release lever (D, Figure 9) to release
tension on the drive belt and remove the belt from the
arbor pulley.
To operate without the collection system, the
blower assembly MUST be removed and the
deflector MUST be in the down position.
4. Remove the hairpin clip (B, Figure 9) and remove the
turbo assembly.
The deflector is spring loaded. when attaching or
removing the blower, hold the deflector up; then
allow the deflector to go down into the normal
operating position.
7
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Attaching & Removing the Turbo
ADJUSTMENTS
E
F
Pulley Adjustments
D
If the mower deck belt has stretched over time, the
stacked idler pulley (B, Figure 10) may need to be
moved to the outer hole in the mower deck to take up the
belt slack.
A
If the mower idler pulley (B) is mounted in the outer hole
in the deck, then the turbo idler pulley (C) should be as
far toward the front as the slot will allow. If the stacked
idler pulley (B) is mounted in the inner hole, then the
turbo idler pulley (C) should remain as installed at factory.
C
B
To adjust:
Figure 9. Mount/Remove Turbo
1. Loosen the back-side idler pulley (C, Figure 10) hard-
ware.
A. Mounting Plate
B. Hairpin Clip
D. Idler Release Lever
E. Upstop
2. Move the idler pulley forward in the adjustment slot
and then re-tighten the hardware.
C. Belt Cover Knob
F. Deflector
Upstop Adjustment
The upstop (E, Figure 9) prevents the deflector (F) from
contacting the top of the turbo. If the upstop is not pro-
viding sufficient clearance, shim the upstop with washers
until the deflector does not contact the turbo.
B
A
F
STORAGE
C
Remove any debris from the turbo blower housing. If you
clean the housing, use a mild detergent only (other prod-
ucts may damage tube). If paint has been scratched on
metal parts, touch up with paint, or apply a thin film of oil.
Adjustment Slot
D
To prevent corrosion, store in a dry area, away from
moisture.
E
FRONT
Figure 10. Turbo Belt Routing
A. Belt
B. Stacked Idler Pulley
C. Back-side Idler Pulley
D. Turbo Drive Pulley
E. Spring Loaded Idler
F. Capscrew, 1/4-20 x 2-1/4
8
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Front Bracket Hole Template
Line Up With Edge of Mower
Line Up With
Existing
Square Hole
Line up Square
Hole on
Template to
square Hole of
Deck
Line up “Edge of
Mower” Line on
Template to Edge
of Mower
Mark and Drill
Two 13/32”
Holes
9
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MANUFACTURING, INC.
Simplicity Mfg. Inc. 500 N Spring
Street / PO Box 997
Port Washington, WI 53074-0997
Briggs & Stratton Yard Power Products Group
Copyright © 2007 Briggs & Stratton Corporation
Milwaukee, WI USA. All Rights Reserved
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