Bush Hog TOUGH GT42 User manual

BUSH HOG®
ASSEMBLY lOPERATION lMAINTENANCE
07/09 Rev. 1 $4.00 50017996
MODEL GT 42
Gasoline Po ered
Rotary Cutter
Operator’s Manual

CONGRATULATIONS!
You have invested in the best implement of its type on the market today.
The care you give your Bush og implement will greatly determine your satisfaction with
its performance and its service life. We urge a careful study of this manual to provide you
with a thorough understanding of your new implement before operating, as well as sug-
gestions for operation and maintenance.
If your manual should become lost or destroyed, Bush og will be glad to provide you with
a new copy. Order from Bush og, 2501 Griffin Ave., Selma, Alabama, 36703. Most of our
manuals can also be downloaded from our website at www.bushhog.com.
As an authorized Bush og dealer, we stock genuine Bush og parts which are manufac-
tured with the same precision and skill as our original equipment. Our trained service per-
sonnel are well informed on methods required to service Bush og equipment, and are
ready and able to help you.
Should you require additional information or assistance, please contact us.
YOUR AUT ORIZED
BUS OG DEALER
BECAUSE BUS OG MAINTAINS AN ONGOING
PROGRAM OF PRODUCT IMPROVEMENT, WE
RESERVE T E RIG T TO MAKE IMPROVEMENTS IN
DESIGN OR C ANGES IN SPECIFICATIONS WIT -
OUT INCURRING ANY OBLIGATION TO INSTALL
T EM ON UNITS PREVIOUSLY SOLD.
BECAUSE OF T E POSSIBILITY T AT SOME
P OTOGRAP S IN T IS MANUAL WERE TAKEN OF
PROTOTYPE MODELS, PRODUCTION MODELS MAY
VARY IN SOME DETAIL. IN ADDITION, SOME
P OTOGRAP S MAY S OW S IELDS REMOVED
FOR PURPOSES OF CLARITY. NEVER OPERATE
T IS IMPLEMENT WIT OUT ALL S IELDS IN PLACE.

SAFETY DECALS
To romote safe o eration, Bush Hog su lies safety decals on all roducts manufactured. Because damage
can occur to safety decals either through shi ment, use or reconditioning, Bush Hog will, u on request, rovide
safety decals for any of our roducts in the field at no charge. Contact your authorized Bush Hog dealer for
more information.
16
WARNING
•NEVER OPERATE THIS MACHINE WITHOUT
THE KILL SWITCH PROPERLY ATTACHED.
FAILURE TO DO SO COULD RESULT IN
SERIOUS INJURY OR DEATH. REFER TO
OPERATOR'S MANUAL FOR PROPER HOOK
UP.
•SAFETY KILL SWITCH CORD SHALL BE
ATTACHED TO OPERATER AND TOWING
VEHICLE.
•D O NOT OPERATE CUTTER ENGINE
UNLESS CUTTER IS SECURELY HITCHED
TOTHE TOWING VEHICLE. STAND CLEAR
OFROTATING BLADES.
•SHOULD CUTTER BECOME UNCOUPLED
FROM TOWING VEHICLE WHILE ENGINE IS
RUNNING, KILL THE ENGINE WITH THE
SAFETY SWITCH AND ALLOW THE CUTTER
BLADE TO STOP TURNING BEFORE
RE-ATTACHING. 81753
THROTTLE
KILL SWITCH
PLUG CONNECT TO
TOWING VEHICLE
CORD THROUGH
BELT LOOP
Part No. 81752
Part No. 81754
Part No. 81753
Ë
Ì
ÊËÌ
Part No. 96103
Í
Í
Ê

LIMITED WARRANTY
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Bush og warrants to the original purchaser of any new Bush og equipment, purchased from an
authorized Bush og dealer, that the equipment be free from defects in material and workmanship for a period
of one (1) year for non-commercial, state, and municipalities’ use and ninety (90) days for commercial use from
date of retail sale. The obligation of Bush og to the purchaser under this warranty is limited to the repair or
replacement of defective parts.
Replacement or repair parts installed in the equipment covered by this limited warranty are warranted
for ninety (90) days from the date of purchase of such part or to the expiration of the applicable new equip-
ment warranty period, whichever occurs later. Warranted parts shall be provided at no cost to the user at an
authorized Bush og dealer during regular working hours. Bush og reserves the right to inspect any equip-
ment or parts which are claimed to have been defective in material or workmanship.
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES
Bush og’s obligation under this limited warranty, to the extent allowed by law, is in lieu of all war-
ranties, implied or expressed, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE and any liability for incidental and consequential damages with respect to
the sale or use of the items warranted. Such incidental and consequential damages shall include but not be
limited to: transportation charges other than normal freight charges; cost of installation other than cost
approved by Bush og; duty; taxes; charges for normal service or adjustment; loss of crops or any other loss of
income; rental of substitute equipment, expenses due to loss, damage, detention or delay in the delivery of
equipment or parts resulting from acts beyond the control of Bush og.
THIS LIMITED WARRANTY SHALL NOT APPLY:
1. To vendor items which carry their own warranties, such as engines, tires, and tubes.
2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
3. If parts not made or supplied by Bush og have been used in connection with the unit, if, in the sole judge-
ment of Bush og such use affects its performance, stability or reliability.
4. If the unit has been altered or repaired outside of an authorized Bush og dealership in a manner
which, in the sole judgement of Bush og, affects its performance, stability or reliability.
5. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,
worn blades, or to normal deterioration of such things as belts and exterior finish due to use or
exposure.
6. To expendable or wear items such as teeth, chains, sprockets, belts, springs and any other items that in the
company’s sole judgement is a wear item.
NO EMPLOYEE OR REPRESENTATIVE OF BUS OG IS AUT ORIZED TO C ANGE T IS LIM-
ITED WARRANTY IN ANY WAY OR GRANT ANY OT ER WARRANTY UNLESS SUC C ANGE IS MADE
IN WRITING AND SIGNED BY BUS OG’S SERVICE MANAGER, 2501 GRIFFIN AVE., SELMA, ALABAMA
36703.
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Record the model number, serial number and date
purchased. This information will be helpful to your
dealer if parts or service are required.
MAKE CERTAIN T E WARRANTY INFORMATION
AS BEEN FILED WIT BUS OG / SELMA, ALABAMA
MODEL NUMBER
SERIAL NUMBER
DATE OF RETAIL SALE
2
TORQUE SPECIFICATIONS
Proper toque for American fasteners used on Bush og equipment.
Recommended Torque in Foot Pounds (Newton Meters).*
BOLT DIAMETER
WRENCH (IN.) “B” AND SAE SAE SAE
SIZE (IN.) “A” THREAD SIZE GRADE 2 GRADE 5 GRADE 8
7/16 1/4 - 2O UNC 6 (7) 8 (11) 12 (16)
7/16 1/4 - 28 UNF 6 (8) 10 (13) 14 (18)
1/2 5/16 - 18 UNC 11 (15) 17 (23) 25 (33)
1/2 5/16 - 24 UNF 13 (17) 19 (26) 27 (37)
9/16 3/8 - 16 UNC 20 (27) 31 (42) 44 (60)
9/16 3/8 - 24 UNF 23 (31) 35 (47) 49 (66)
5/8 7/16 - 14 UNC 32 (43) 49 (66) 70 (95)
5/8 7/16 - 20 UNF 36 (49) 55 (75) 78 (106)
3/4 1/2 - 13 UNC 49 (66) 76 (103) 106 (144)
3/4 1/2 - 20 UNF 55 (75) 85 (115) 120 (163)
7/8 9/16 - 12 UNC 70 (95) 109 (148) 153 (207)
7/8 9/16 - 18 UNF 79 (107) 122 (165) 172 (233)
15/16 5/8 - 11 UNC 97 (131) 150 (203) 212 (287)
15/16 5/8 - 18 UNF 110 (149) 170 (230) 240 (325)
1-1/8 3/4 - 10 UNC 144 (195) 266 (360) 376 (509)
1-1/8 3/4 - 16 UNF 192 (260) 297 (402) 420 (569)
1-5/16 7/8 - 9 UNC 166 (225) 430 (583) 606 (821)
1-5/16 7/8 - 14 UNF 184 (249) 474 (642) 668 (905)
1-1/2 1 - 8 UNC 250 (339) 644 (873) 909 (1232)
1-1/2 1 - 12 UNF 274 (371) 705 (955) 995 (1348)
1-1/2 1 - 14 UNF 280 (379) 721 (977) 1019 (1381)
1-11/16 1-1/8 - 7 UNC 354 (480) 795 (1077) 1288(1745)
1-11/16 1-1/8 - 12 UNF 397 (538) 890 (1206) 1444 (1957)
1-7/8 1-1/4 - 7 UNC 500 (678) 1120 (1518) 1817 (2462)
1-7/8 1-1/4 - 12 UNF 553 (749) 1241 (1682) 2013 (2728)
2-1/16 1-3/8 - 6 UNC 655 (887) 1470 (1992) 2382 (3228)
2-1/16 1-3/8 - 12 UNF 746 (1011) 1672 (2266) 2712 (3675)
2-1/4 1-1/2 - 6 UNC 870 (1179) 1950 (2642) 3161 (4283)
2-1/4 1-1/2 - 12 UNF 979 (1327) 2194 (2973) 3557 (4820)
Proper torque for metric fasteners used on Bush og equipment.
Recommended torque in foot pounds (newton Meters).*
WRENCH BOLT
SIZE DIA. ASTM ASTM ASTM ASTM
(mm) “A” (mm) “B” 4.6 8.8 9.8 10.9
851.8 (2.4) 5.1 (6.9) 6.5 (8.8)
10 6 3 (4) 8.7 (12) 11.1 (15)
13 8 7.3 (10) 21.1 (29) 27 (37)
16 10 14.5 (20) 42 (57) 53 (72)
18 12 25 (34) 74 (100) 73 (99) 93 (126)
21 14 40 (54) 118 (160) 116 (157) 148 (201)
24 16 62 (84) 167 (226) 181 (245) 230 (312)
30 20 122 (165) 325 (440) 449 (608)
33 22 443 (600) 611 (828)
36 24 211 (286) 563 (763) 778 (1054)
41 27 821 (1112) 1138 (1542)
46 30 418 (566) 1119 (1516) 1547 (2096)
*Use 75% of the specified torque value for plated
fasteners. Use 85% of the specified torque
values for lubricated fasteners.
Numbers appearing on bolt heads
indicate ASTM class.
METRIC
AMERICAN
Bolt ead Markings
Wrench
Size “A”
Bolt
Diameter “B”
SAE Grade 8
(6 Dashes)
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Dashes)
Wrench
Size “A” 8.8
Bolt
Diameter “B”
19

DEALER PREPARATION C ECK LIST
GT 42 Rotary Cutter
BEFORE DELIVERING MAC INE — The following check list should be completed.
Use the Operator’s Manual as a guide.
ASSEMBLY
r1. Axle assembly
r2. Tongue assembly
r3. Throttle assembly
ENGINE SERVICE (Refer to Engine Owner’s Manual)
r1. Oil reservoir filled
r2. Gas tank filled GENERAL
r1. All shields in place
r2. All safety decals legible (If damaged, Bush og will
furnish free upon request)
r3. All bolts tight (Including blade bolts)
r4. Machine operates properly
p5. Overall condition good
r6. Operator’s Manual and Engine Manual was delivered to owner, and he has
been instructed on the safe and proper use of cutter.
r7. Kill switch cord included
r8.Warranty information has been filed with Bush og Selma, Alabama.
Dealer’s
Signature
Purchaser’s
Signature
T IS C ECKLIST TO REMAIN IN OWNER’S MANUAL
It is the responsibility of the dealer to complete the procedures listed
above before delivery of this implement to the customer.
3
SAFETY DECALS
To promote safe operation, Bush og supplies safety decals on all products manufactured. Because damage
can occur to safety decals either through shipment, use or reconditioning, Bush og will, upon request, provide
safety decals for any of our products in the field at no charge. Contact your authorized Bush og dealer for
more information.
18
Part No. 81752
Part No. 81754
Part No. 81753
Ë
Ì
ÊËÌ
Part No. 96103
Í
Í
Ê

SAFETY DECALS
To romote safe o eration, Bush Hog su lies safety decals on all roducts manufactured. Because damage
can occur to safety decals either through shi ment, use or reconditioning, Bush Hog will, u on request, rovide
safety decals for any of our roducts in the field at no charge. Contact your authorized Bush Hog dealer for
more information.
16
WARNING
•NEVER OPERATE THIS MACHINE WITHOUT
THE KILL SWITCH PROPERLY ATTACHED.
FAILURE TO DO SO COULD RESULT IN
SERIOUS INJURY OR DEATH. REFER TO
OPERATOR'S MANUAL FOR PROPER HOOK
UP.
•SAFETY KILL SWITCH CORD SHALL BE
ATTACHED TO OPERATER AND TOWING
VEHICLE.
•D O NOT OPERATE CUTTER ENGINE
UNLESS CUTTER IS SECURELY HITCHED
TOTHE TOWING VEHICLE. STAND CLEAR
OFROTATING BLADES.
•SHOULD CUTTER BECOME UNCOUPLED
FROM TOWING VEHICLE WHILE ENGINE IS
RUNNING, KILL THE ENGINE WITH THE
SAFETY SWITCH AND ALLOW THE CUTTER
BLADE TO STOP TURNING BEFORE
RE-ATTACHING. 81753
THROTTLE
KILL SWITCH
PLUG CONNECT TO
TOWING VEHICLE
CORD THROUGH
BELT LOOP
Part No. 81752
Part No. 81754
Part No. 81753
Ë
Ì
ÊËÌ
Part No. 96103
Í
Í
Ê

BUSH HOG®
ASSEMBLY lOPERATION lMAINTENANCE
05/09 Rev.1 $4.00 50027657
MODELGT48
Gasoline Powered Trailed
Rotary Cutter
Operator’s Manual
WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEM-
ICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CAN-
CER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
2501 Griffin Ave. llSelma, AL 36703
Telephone [phone] ll www.bushhog.com