THIS MANUAL CONTAINS THE OPERATING
INSTRUCTIONS AND SAFETY INFORMATION FOR YOUR SCAG ACCESSORY. READING THIS MANUAL WILL PROVIDE YOU
WITH MAINTENANCE AND ADJUSTMENT
PROCEDURES TO KEEP YOUR ACCESSORY
PERFORMING TO MAXIMUM EFFICIENCY.
THE SPECIFIC MODELS THAT THIS BOOK
COVERS ARE CONTAINED ON THE INSIDE
COVER. BEFORE OPERATING YOUR MACHINE, PLEASE READ ALL THE INFORMATION ENCLOSED.
PART NUMBER 03125
WARNING
FAILURE TO FOLLOW SAFE OPERATING PRACTICES
MAY RESULT IN SERIOUS INJURY.
* Keep all safety shields in place.
* Before performing any maintenance or service, stop the machine and
remove the spark plug wire.
* If a mechanism becomes clogged, stop the engine before cleaning.
* Keep hands, feet and clothing away from power-driven parts.
* Read this manual completely as well as the Operator's Manual that came
with your mower.
* Keep others off the tractor (only one person at a time).
REMEMBER - YOUR MOWER IS ONLY AS SAFE AS THE OPERATOR!
Hazard control and accident prevention are dependent upon the awareness,
concern, prudence, and proper training of the personnel involved in the operation, transport, maintenance, and storage of the equipment.
This manual covers the operating instructions
and illustrated parts list for:
GC-STC with a part number of 9015
1.1 INTRODUCTION
WARNING
This manual has been prepared to provide the
information you need to correctly assemble, operate,
and maintain this grass catcher. Read it carefully and
keep it for future reference.
2.1 SAFETY AND OPERATING
INSTRUCTIONS
-Note-
To avoid personal injury, it is imperative that all
safety instructions be observed.
The replacement of any part on this product by other
than the manufacturer's authorized replacement part
may adversely affect the performance, durability or
safety of this product.
USE OF OTHER THAN ORIGINAL SCAG
REPLACEMENT PARTS WILL VOID THE
WARRANTY.
If additional information or service is needed that is
not outlined in this manual, please contact your Scag
Power Equipment dealer. Scag dealers are trained in
the latest service methods and carry a full line of Scag
replacement parts.
When ordering parts, always provide the complete
model number of your catcher.
All information provided in this manual is based upon
information available at the time of printing. Scag
Power Equipment reserves the right to make changes
at any time without notice or obligation.
1.2 DIRECTION REFERENCE
The "Right" and "Left", "Front" and "Rear" of the
machine are referenced from the normal operating
position.
1. Read this operator's manual and the
operator's manual that is supplied with the
machine this attachment is used on.
A replacement manual is available from your
authorized Scag Service Dealer or by contacting:
Scag Power Equipment, Service Department at P.O.
Box 152, Mayville, WI 53050. You may also contact
us through our website at www.scag.com Please
indicate the complete model and number of your
Scag product when ordering a replacement manual.
WARNING
DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING
KIT, OR ENTIRE GRASS CATCHER INSTALLED
2. Before removing the grass bags, disengage the
mower, stop the engine and wait for all
movement to stop.
3. ALWAYS turn the engine OFF, remove the key
and wait for all movement to stop before
servicing or cleaning the mower or the grass
catcher.
4. Do not modify or alter any component of the
grass catcher attachment or mower.
5. Do not allow any passengers to ride on the grass
catcher attachment or on the mower.
1
3.1 ASSEMBLY INSTRUCTIONS
WARNING
-NOTE-
Use the illustrated parts list as a part number
reference when following the assembly
instructions.
-NOTE-
There are two (2) pulleys supplied with this kit.
Small pulley (3-3/4" O.D.) is for 48" deck.
Large Pulley (4.0" O.D.) is for 52" deck.
1. Remove all packaging materials. Lay out the
mounting hardware and the catcher assembly
parts for easy access. Prepare the work area
making sure that it is a clean, safe environment.
WARNING
DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING
KIT, OR ENTIRE GRASS CATCHER INSTALLED
2. Remove the discharge chute from the cutter
deck. See Figure 1.
-NOTE-
Do not discard the discharge chute or
mounting hardware. The discharge chute
MUST be reinstalled anytime the grass
catcher has been removed from the
machine.
3. Remove the right side belt cover to gain access to
the spindle assembly. Remove the front u-nut
from the cutter deck bracket. See Figure 1.
-NOTE-
Retain the original belt cover. This cover
MUST be reinstalled anytime the
complete catcher system is removed.
4. Install the grass catcher pulley onto the spindle
assembly. Apply loctite to both pulley setscrews
and tighten. See Figure 1.
5. Install the blower mounting bracket to the deck
using carriage bolts (p/n 04003-11), lockwashers,
and nuts. Do not fully tighten the hardware at
this time. See Figure 2, Page 3
6. Install the catch plate (p/n 423297) to the blower
assembly using carraige bolts (p/n 04003-12)
facing upward. Secure with lockwashers and
elastic stop nuts. Do not fully tighten the
hardware at this time. See Figure 3, Page 3.
7. Install the blower assembly to the mounting
bracket and secure with the mounting pin.
See Figure 3, Page 3.
8. Align the blower assembly with the discharge
opening of the cutter deck. Tighten the hardware
for the mounting bracket. Then tighten the
hardware for the catch plate.
REMOVE DISCHARGE
CHUTE AND
HARDWARE
REMOVE U-NUT
INSTALL PULLEY
ON RH SPINDLE SHAFT ON TOP OF EXISTING
SPINDLE DRIVE
PULLEY
RIGHT SIDE OF
CUTTER DECK SHOWN
(Note: Some parts not shown for viewing purposes.)
FIGURE 1
2
REMOVE EXISTING
RT. SIDE BELT
COVER
Figure 1- GC-STC install art
LOCK
WASHER
REAR OF
CUTTER DECK
ELASTIC
STOP NUT
CARRIAGE
BOLTS
CATCH
PLATE
DISCHARGE CHUTE OPENING
VIEW FROM RIGHT SIDE
OF CUTTER DECK
FIGURE 2
BLOWER
ASSEMBLY
PROPERLY
SERVICE
ENGINE
WITH
OIL
AND
FUEL.
MOUNTING
BRACKET
PIN
FRONT OF
CUTTER DECK
Figure 2- GC-STC install art
ELASTIC
STOP NUTS
AND LOCK
WASHERS
GC-STC install art 3
RIGHT SIDE OF
CUTTER DECK SHOWN
(Note: Some parts not shown for viewing purposes.)
FIGURE 3
3
9. Install the belt to the spindle pulley. When
replacing the belt, see figure below.
BACK SIDE
IDLER PULLEY
FRONT SIDE
IDLER PULLEY
BLOWER
PULLEY
SPINDLE
PULLEY
13. Install the hose from the blower assembly
adapter to the hopper hood and secure using the
6-1/2" clamps.
14. Install the bag assemblies.
15. Using the weight support bar as a guide, identify
the four corresponding mounting holes, and the
existing hardware that will need to be removed
in order to secure the weight support bar to the
front of the machine as shown. See Figure 5-A.
10. Install the new belt covers and secure. See
items number 1 and number 21 on page 9 of the
Blower Mounting Components secton in the
Illustrated Parts List for proper installation.
11. Install the hopper mounting brackets to the
outside of the frame on the rear of the machine.
See Figure 4.
Hopper
Mounting
Brackets
Rear Frame
Figure 4 A GC-STT Install Art
Figure 4
12. Attach the hood assembly to the machine by
installing the mounting post into the hopper
mounting brackets and secure with the ring pins.
See Figure 5.
16. Install one 7/16-14 x 1-3/4" hex head bolt into
each of the four mounting holes in the weight
support bar, and through the matching holes in
the caster support weldment. Secure this
assembly to the front of the machine using the
7/16- .5" x 1-1/4" x .083" flatwashers, and the
7/16-14 elastic stop nuts. Torque hardware to
59 ft. lbs. See Figure 5-A.
Figure 5-A
17. Operate and test.
Figure 5
4
4.1 GRASS CATCHER REMOVAL
WARNING
INSTRUCTIONS
1. Prepare the work area making sure that it is a
clean, safe environment.
2. Remove the bag assemblies from the grass
catcher.
3. Remove the rubber strap holding the adapter to
the blower assembly. See Figure 6.
4. Remove the pin holding the blower assembly to
the mounting bracket on the cutter deck and
remove the blower assembly. See Figure 6.
ADAPTER
BLOWER
ASSEMBLY
PIN
MOUNTING
BRACKET
6. Remove the hood assembly.
WARNING
DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING
KIT, OR ENTIRE GRASS CATCHER INSTALLED
7. Re-install the side discharge chute to the opening
on the cutter deck. Replace the two outside
mounting bolts on the discharge chute with the
clevis pins (p/n 04064-15) and rue cotter pins
(p/n 04069-03). See Figure 8.
DISCHARGE
CHUTE
CLEVIS PIN
P/N 04064-15
GC-STC removal art 3
CLEVIS PIN
P/N 04064-15
RUE COTTER PIN
P/N 04069-03
RIGHT SIDE OF
CUTTER DECK SHOWN
GC-STC removal art 1
(Note: Some parts not shown for viewing purposes.)
Figure 6
5. Remove the two (2) pins holding the hood
assembly to the mounting posts on the rear of the
machine. See Figure 7.
REMOVE
MOUNTING
PINS
GC-STC removal art 2-A
Figure 7
Figure 8
5
NOTES
6
GC-STC BLOWER HOUSING ASSEMBLY
12
38
27
37
44
1
2
3
10
4
8
5
7
6
9
10
43
42
26
34
41
40
27
INSTALL BEL
OPERATING MACHINE
READ OPERATOR'S
WARNING
T COVER BEFORE
MANUAL
17
28
43
35
3
27
36
11
14
18
10
9
15
25
19
20
16
11
12
15
13
14
21
22
23
24
39
36
35
45
34
47
37
38
33
31
47
32
29
DISCHARGE GUARD IS INSTALLED
ROTATING BLADES AND BLOWER
DANGER
Stop engine
DO NOT OPERATE MOWE
UNLESS GRASS CATCHER OR
before cleaning or removing
R
31
14
24
14
30
46
390S0200
7
GC-STC BLOWER HOUSING ASSEMBLY
Ref. Part
No. Number Description
104067-07Pin, Ring 2-1/4" Long
2481547Lanyard, Deck Height Pin
304019-02Nut, Serr. Flange 1/4-20
404001-59Bolt, Hex Head 1/4-20 x 1-1/4"
504001-01Bolt, Hex Head 1/4-20 x 3/4"
6423298Belt Cover, Rear
7481428Grip, Blower Lever
8482300Cap, Square
904024-02Nut, Push On 3/8 Thread
1004021-05Lock Nut, 3/8-16
1104041-07Flatwasher, 3/8-.391 x .938 x .105
1243277Spacer
13482299Pulley, Idler 4" Dia.
1404021-09Nut, Elastic Stop 3/8-16
1504030-04Lockwasher, 3/8-16
16423296Plate, Catch Mounting
1704003-05Bolt, Carr . 3/8-16 x 1-1/2"
1804001-46Bolt, Hex Head 3/8-16 x 2-1/4"
1904001-62Bolt, Hex Head 3/8-16 x 3-1/4"
2004001-45Bolt, Hex Head 3/8-16 x 2"
21461519Idler Arm Weldment
22482278Belt, GC-STC
23482079Pulley, 4" O.D.
2404043-04Washer, 3/8 Hardened
2543575Pivot, Idler
26481039Decal, Belt Cover
2704019-04Nut, Serr. Flange 3/8-16
2804001-136 Bolt, Hex Head 3/8-16 x 1-1/2 Gr. 8
29482293Decal, Danger
30461342Blower Housing Weldment, includes item #29
3104003-12Bolt, Carr . 5/16-18 x 3/4" Gr . 5
3204063-06Key, 1/4 x 1/4 x 1-1/2"
3345491Fan Weldment
3448915Bearing with Locking Collar
3504021-10Nut, Elastic Stop 5/16-18
3604040-04Flatwasher, 5/16-.344 x .688 x .065
37421319Cover, Blower Housing
3848136-01Clamp, 6-1/2" Max Dia.
3948135-10Hose, 6" Dia.
40482298Pulley, 4-3/4" O.D. - 1" Bore
4104012-04Set Screw, 5/16-18 x 3/8"
42461343Frame Weldment, Blower Mount
43481522Spring, Main Drive
4443212Spacer
4504019-03Nut, Serr. Flange 5/16-18
46461341Blower Housing Assembly
-Note-
Some of the hardware is common hardware and you may purchase it locally. Be sure that all bolts
purchased locally are a grade 5.
8
GC-STC BLOWER MOUNTING COMPONENTS
2
10
12
14
15
5
6
7
8
6
13
15
10
11
9
21
1
4
3
22
20
19
18
17
16
390S0203-A
9
GC-STC BLOWER MOUNTING COMPONENTS
Ref.Part
No.NumberDescription
1482612Belt Cover, GC-STC
204029-04Wingnut, Plastic 3/8 Small
3482300Cap, Square Vinyl
404021-08Nut, Elastic Stop 1/4-20
5461387Adapter, Blower GC-STC, includes item #7
604040-14Flatwasher, 1/4-.312 x .750 x .065
748137-04Rubber Strap 7-3/4"
804001-59Bolt, Hex Head 1/4-20 x 1-1/4"
9481625-01Knob W/Stud, 3/8-16 x 1-1/4"
1004064-15Clevis Pin, 5/16 x 1-1/2"
1104069-03Pin, Rue Cotter 5/16 Dia.
1204067-07Pin, Ring 1/2 x 2-1/4"
13481547Lanyard
14482248Pulley, 3-3/4" for 48" Deck
482587Pulley, 4.0" for 52" Deck
1504012-04Setscrew, 5/16-18 x 3/8"
1604021-09Nut, Elastic Stop 3/8-16
1704030-04Lockwasher, 3/8"
1804041-07Flatwasher, 3/8-.391 x .938 x .105
1904003-11Bolt, Carr. 3/8-16 x 1-1/4" Grade 5
20461530Mounting Post Weldment, Blower
21423708Belt Cover
2204110-03U-Nut
-Note-
Some of the hardware is common hardware and you may purchase it locally. Be sure that all bolts
purchased locally are a grade 5.
10
3
36
37
GC-STC BUCKET SUPPORT COMPONENTS (UPPER)
40
1
2
4
32
31
11
38
17
3
33
5
24
5
9
35
31
4
33
22
21
16
23
5
9
18
16
25
9
34
19
13
16
5
4
6
5
9
8
23
16
21
13
20
16
14
11
5
9
18
16
15
30
32
29
28
27
26
12
40
7
39
10
11
GC-STC BUCKET SUPPORT COMPONENTS (UPPER)
Ref. Part
No. Number Description
1423302Screen, Catcher Hood
204090-02Pop Rivet, 3/16 x .652
304041-19Flatwasher, 3/16-.196 x .469 x .048
404001-32Bolt, Hex Head 3/8-16 x 1-1/4"
504041-01Flatwasher, 3/8-.391 x .938 x .105
6461408Hood Assembly, GC-STT (includes items 1, 2 & 3 and items 2 & 15 on page 14)
704001-117Bolt, Hex Head 7/16-14 x 1-3/4"
8423258Hinge, Upper LH
904021-09Nut, Elastic Stop 3/8-16
1004040-11Flatwasher, 7/16-.500 x 1-1/4"
1104001-46Bolt, Hex Head 3/8-16 x 2-1/4"
1204021-11Nut, Elastic Stop 7/16-14
1304001-20Bolt, Hex Head 3/8-16 x 1-1/2"
1404001-135Bolt, Hex Head 3/8-16 x 1-3/4" Grade 8
15451516Support Weldment, Bag Frame
1604019-04Nut, Serrated Flange 3/8-16
1704090-03Rivot, 3/16 x .402 POP
1843546Bushing, Hopper Pivot
19482304Spring, Hood Hinge
20423436Hinge, Lower LH
2143212Spacer
2204021-05Locknut, 3/8-16
2343277Spacer
24423259Hinge, Upper RH
25423261Hinge, Lower RH
2648135-10Hose, 6" Dia. x 49.5"
2748136-01Clamp, 6-1/2" Max Dia.
28482269Tube, Filler GC-STC
29482268Elbow, GC-STC
3004001-10Bolt, Hex Head 5/16-18 x 1-1/4"
3104021-10Nut, Elastic Stop 5/16-18
3204040-15Flatwasher, 5/16-.375 x .875 x .083
3304041-11Flatwasher, 3/8- .406 x 1-1/2" x .179
3404030-04Lockwasher, 3/8 Spring
35482409Latch
3604010-25Screw, #10-32 x 3/4"
3704021-01Nut, Elastic Stop #10-32
3804001-08Bolt, Hex Head 5/16-18 x 3/4"
39451517Support Weldment, Weights
40461097Weight Assembly
-Note-
Some of the hardware is common hardware and you may purchase it locally. Be sure that all bolts
purchased locally are a grade 5.
12
GC-STC BUCKET SUPPORT COMPONENTS (LOWER)
1
2
24
22
23
21
20
19
17
18
"A"
3
4
5
14
16
15
11
13
6
7
TO "A"
4
12
3
4
8
4
5
6
7
4
8
FRAME
5
4
9
10
10A
STC 2002 BSC
13
GC-STC BUCKET SUPPORT COMPONENTS (LOWER)
Ref.Part
No.NumberDescription
104090-02Pop Rivet, 3/16 x .652
2482321Seal, Hood
3423262Tube, Upright
404041-07Flatwasher, 3/8-.391 x .938 x .105
504021-09Nut, Elastic Stop 3/8-16
604020-04Nut, 3/8-16
704021-05Hex Lock Nut, 3/8-16
804067-07Pin, Ring 1/2 x 2-1/4"
904001-19Bolt, Hex Head 3/8-16 x 1"
10451514Mounting Bracket Weldment R.H
10A451513Mounting Bracket Weldment L.H.
1104021-02Lock Nut, 1/4-20 Center
1204001-46Bolt, Hex Head 3/8-16 x 2-1/4"
1304001-31Bolt, Hex Head 3/8-16 x 2-1/2"
14482567Bag Assembly, GC-STC
15423312Retainer, Seal
16451516Support, Bag Frame
1704003-02Bolt, Carr. 1/4-20 x 3/4"
1804001-08Bolt, Hex Head 5/16-18 x 3/4"
19423198Mount, Bag Frame Tube
2004003-12Bolt, Carr. 5/16-18 x 3/4"
21423197Tube, Bag Support
2204019-03Nut, Serr. Flange 5/16-18
2304040-15Flatwasher, 5/16-.375 x .875 x .083
2404021-10Nut, Elastic Stop 5/16-18
-Note-
Some of the hardware is common hardware and you may purchase it locally. Be sure that all bolts
purchased locally are a grade 5.
14
481039
GC-STC DECALS
482275
481327
482293
15
LIMITED WARRANTY- COMMERCIAL ACCESSORY
Any part of the Scag commercial accessory manufactured by Scag and found, in the reasonable judgment of Scag,
to be defective in material or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without
charge for parts and labor.
The Scag accessory, including any defective part, must be returned to an Authorized Scag Service Dealer within
the warranty period. The expense of delivering the accessory to the dealer for warranty work and the expense of
returning it back to the owner after repair or replacement will be paid for by the owner. Scagís responsibility in respect
to claims is limited to making the required repairs or replacements, and no claim of breach of warranty shall be cause
for cancellation or rescission of the contract of sale of any Scag machine. Proof of purchase will be required by the
dealer to substantiate any warranty claim. All warranty work must be performed by an Authorized Scag Service
Dealer.
This warranty is limited to 90 days from the date of original retail purchase for any Scag accessory that is used for
commercial purposes, or any other income-producing purpose including rental use.
This warranty does not cover any accessory that has been subject to misuse, neglect, negligence, or accident, or
that has been operated in any way contrary to the operating instructions as specified in the Operator's Manual. The
warranty does not apply to any damage to the accessory that is the result of improper maintenance, or to any
accessory or parts that have not been assembled or installed as specified in the Operator's Manual.
The warranty does not cover any accessory that has been altered or modified. In addition, the warranty does not
extend to repairs made necessary by normal wear, or by the use of parts or accessories which, in the reasonable
judgment of Scag, are either incompatible with the Scag mower or adversely affect its operation, performance or
durability. This warranty does not cover engines and electric starters, which are warranted separately by their
manufacturer.
Scag Power Equipment reserves the right to change or improve the design of any accessory without assuming any
obligation to modify any accessory previously manufactured.
All other implied warranties are limited in duration to the 90 day warranty period. Accordingly, any such implied
warranties including merchantability, fitness for a particular purpose, or otherwise, are disclaimed in their entirety
after the expiration of the appropriate ninety day warranty period. Scagís obligation under this warranty is strictly
and exclusively limited to the repair or replacement of defective parts and Scag does not assume or authorize anyone
to assume for them any other obligation. Some states do not allow limitations on how long an implied warranty lasts,
so the above limitation may not apply to you.
Scag assumes no responsibility for incidental, consequential or other damages including, but not limited to, expense
for gasoline, oil, expense of delivering the machine to an Authorized Scag Service Dealer and expense of returning
it back to the owner, mechanicís travel time, telephone or telegram charges, rental of a like product during the time
warranty repairs are being performed, travel, loss or damage to personal property, loss of revenue, loss of use of
the mower, loss of time, or inconvenience. Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.