Scag GC-STC User Manual 2

MODEL GC-STC

OPERATOR’S MANUAL

INSTALL BELT COVER BEFORE

WARNING

OPERATING MACHINE

READ OPERATOR'S MANUAL

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

1 04067-07 Pin, Ring 2-1/4" Long
2 481547 Lanyard, Deck Height Pin
3 04019-02 Nut, Serr. Flange 1/4-20
4 04001-59 Bolt, Hex Head 1/4-20 x 1-1/4"
5 04001-01 Bolt, Hex Head 1/4-20 x 3/4"
6 423298 Belt Cover, Rear
7 481428 Grip, Blower Lever
8 482300 Cap, Square
9 04024-02 Nut, Push On 3/8 Thread
10 04021-05 Lock Nut, 3/8-16
11 04041-07 Flatwasher, 3/8-.391 x .938 x .105
12 43277 Spacer
13 482299 Pulley, Idler 4" Dia.
14 04021-09 Nut, Elastic Stop 3/8-16
15 04030-04 Lockwasher, 3/8-16
16 423296 Plate, Catch Mounting
17 04003-05 Bolt, Carr . 3/8-16 x 1-1/2"
18 04001-46 Bolt, Hex Head 3/8-16 x 2-1/4"
19 04001-62 Bolt, Hex Head 3/8-16 x 3-1/4"
20 04001-45 Bolt, Hex Head 3/8-16 x 2"
21 461519 Idler Arm Weldment
22 482278 Belt, GC-STC
23 482079 Pulley, 4" O.D.
24 04043-04 Washer, 3/8 Hardened
25 43575 Pivot, Idler
26 481039 Decal, Belt Cover
27 04019-04 Nut, Serr. Flange 3/8-16
28 04001-136 Bolt, Hex Head 3/8-16 x 1-1/2 Gr. 8
29 482293 Decal, Danger
30 461342 Blower Housing Weldment, includes item #29
31 04003-12 Bolt, Carr . 5/16-18 x 3/4" Gr . 5
32 04063-06 Key, 1/4 x 1/4 x 1-1/2"
33 45491 Fan Weldment
34 48915 Bearing with Locking Collar
35 04021-10 Nut, Elastic Stop 5/16-18
36 04040-04 Flatwasher, 5/16-.344 x .688 x .065
37 421319 Cover, Blower Housing
38 48136-01 Clamp, 6-1/2" Max Dia.
39 48135-10 Hose, 6" Dia.
40 482298 Pulley, 4-3/4" O.D. - 1" Bore
41 04012-04 Set Screw, 5/16-18 x 3/8"
42 461343 Frame Weldment, Blower Mount
43 481522 Spring, Main Drive
44 43212 Spacer
45 04019-03 Nut, Serr. Flange 5/16-18
46 461341 Blower 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. Number Description

1 482612 Belt Cover, GC-STC
2 04029-04 Wingnut, Plastic 3/8 Small
3 482300 Cap, Square Vinyl
4 04021-08 Nut, Elastic Stop 1/4-20
5 461387 Adapter, Blower GC-STC, includes item #7
6 04040-14 Flatwasher, 1/4-.312 x .750 x .065
7 48137-04 Rubber Strap 7-3/4"
8 04001-59 Bolt, Hex Head 1/4-20 x 1-1/4"
9 481625-01 Knob W/Stud, 3/8-16 x 1-1/4"
10 04064-15 Clevis Pin, 5/16 x 1-1/2"
11 04069-03 Pin, Rue Cotter 5/16 Dia.
12 04067-07 Pin, Ring 1/2 x 2-1/4"
13 481547 Lanyard
14 482248 Pulley, 3-3/4" for 48" Deck

482587 Pulley, 4.0" for 52" Deck
15 04012-04 Setscrew, 5/16-18 x 3/8"
16 04021-09 Nut, Elastic Stop 3/8-16
17 04030-04 Lockwasher, 3/8"
18 04041-07 Flatwasher, 3/8-.391 x .938 x .105
19 04003-11 Bolt, Carr. 3/8-16 x 1-1/4" Grade 5
20 461530 Mounting Post Weldment, Blower
21 423708 Belt Cover
22 04110-03 U-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

1 423302 Screen, Catcher Hood
2 04090-02 Pop Rivet, 3/16 x .652
3 04041-19 Flatwasher, 3/16-.196 x .469 x .048
4 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4"
5 04041-01 Flatwasher, 3/8-.391 x .938 x .105
6 461408 Hood Assembly, GC-STT (includes items 1, 2 & 3 and items 2 & 15 on page 14)
7 04001-117 Bolt, Hex Head 7/16-14 x 1-3/4"
8 423258 Hinge, Upper LH
9 04021-09 Nut, Elastic Stop 3/8-16
10 04040-11 Flatwasher, 7/16-.500 x 1-1/4"
11 04001-46 Bolt, Hex Head 3/8-16 x 2-1/4"
12 04021-11 Nut, Elastic Stop 7/16-14
13 04001-20 Bolt, Hex Head 3/8-16 x 1-1/2"
14 04001-135 Bolt, Hex Head 3/8-16 x 1-3/4" Grade 8
15 451516 Support Weldment, Bag Frame
16 04019-04 Nut, Serrated Flange 3/8-16
17 04090-03 Rivot, 3/16 x .402 POP
18 43546 Bushing, Hopper Pivot
19 482304 Spring, Hood Hinge
20 423436 Hinge, Lower LH
21 43212 Spacer
22 04021-05 Locknut, 3/8-16
23 43277 Spacer
24 423259 Hinge, Upper RH
25 423261 Hinge, Lower RH
26 48135-10 Hose, 6" Dia. x 49.5"
27 48136-01 Clamp, 6-1/2" Max Dia.
28 482269 Tube, Filler GC-STC
29 482268 Elbow, GC-STC
30 04001-10 Bolt, Hex Head 5/16-18 x 1-1/4"
31 04021-10 Nut, Elastic Stop 5/16-18
32 04040-15 Flatwasher, 5/16-.375 x .875 x .083
33 04041-11 Flatwasher, 3/8- .406 x 1-1/2" x .179
34 04030-04 Lockwasher, 3/8 Spring
35 482409 Latch
36 04010-25 Screw, #10-32 x 3/4"
37 04021-01 Nut, Elastic Stop #10-32
38 04001-08 Bolt, Hex Head 5/16-18 x 3/4"
39 451517 Support Weldment, Weights
40 461097 Weight 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. Number Description

1 04090-02 Pop Rivet, 3/16 x .652
2 482321 Seal, Hood
3 423262 Tube, Upright
4 04041-07 Flatwasher, 3/8-.391 x .938 x .105
5 04021-09 Nut, Elastic Stop 3/8-16
6 04020-04 Nut, 3/8-16
7 04021-05 Hex Lock Nut, 3/8-16
8 04067-07 Pin, Ring 1/2 x 2-1/4"
9 04001-19 Bolt, Hex Head 3/8-16 x 1"
10 451514 Mounting Bracket Weldment R.H
10A 451513 Mounting Bracket Weldment L.H.
11 04021-02 Lock Nut, 1/4-20 Center
12 04001-46 Bolt, Hex Head 3/8-16 x 2-1/4"
13 04001-31 Bolt, Hex Head 3/8-16 x 2-1/2"
14 482567 Bag Assembly, GC-STC
15 423312 Retainer, Seal
16 451516 Support, Bag Frame
17 04003-02 Bolt, Carr. 1/4-20 x 3/4"
18 04001-08 Bolt, Hex Head 5/16-18 x 3/4"
19 423198 Mount, Bag Frame Tube
20 04003-12 Bolt, Carr. 5/16-18 x 3/4"
21 423197 Tube, Bag Support
22 04019-03 Nut, Serr. Flange 5/16-18
23 04040-15 Flatwasher, 5/16-.375 x .875 x .083
24 04021-10 Nut, 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.

© 2003
SCAG POWER EQUIPMENT
DIVISION OF METALCRAFT OF MAYVILLE, INC
WWW.SCAG.COM

PART NO. 03125

PRINTED 6-2002

PRINTED IN USA