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GRAVELY
NAME: GRAVELY SNOWBLOWERS
The 28 Inch and 34 Inch Snowblowers are used with Gravely two wheel tractors. The 38 Inch and 44
Inch Snowblowers are used with Gravely four wheel tractors.
To fasten the Snowblower to a Gravely two wheel tractor a Quick Hitch Pin Kit, part No. 23220, is
needed. To fasten the Snowblower to a Gravely four wheel tractor a Front Drive Kit, part No. 21124, is
needed.
All reference to left side, right side, front and rear are from the operator's position.
To continue its program of quality and design improvement,
the manufacturer reserves the right to change specifications,
designs and prices without notice and incurring obligation.
OPERATOR'S
MANUAL
PART NUMBER(S):
Form No: 24729 (6-78)
28"
- 20979
34"
- 20981
38"
- 20980
44"
- 20982
Printed in U.S.A.
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Summary of Contents for Gravely 20979
- Page 1 GRAVELY NAME: GRAVELY SNOWBLOWERS The 28 Inch and 34 Inch Snowblowers are used with Gravely two wheel tractors. The 38 Inch and 44 Inch Snowblowers are used with Gravely four wheel tractors. To fasten the Snowblower to a Gravely two wheel tractor a Quick Hitch Pin Kit, part No. 23220, is needed.
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Page 2: Table Of Contents
CONTENTS 1.0 ...SAFETY PRECAUTIONS 2.0 ...ILLUSTRATED PARTS LIST 3.0 ... CONNECTING THE SNOWBLOWER TO THE 4.0 ...OPERATING THE 28 or 34 INCH 5.0 ... CONNECTING THE SNOWBLOWER TO THE 6.0 ... OPERATING THE 38 or 44 INCH 7.0 ...MAINTENANCE 8.0 ...STORAGE TWO WHEEL TRACTOR SNOWBLOWER FOUR WHEEL TRACTOR... -
Page 3: Safety Precautions
It is not possible for Gravely to know and tell the operator or person doing service on the equipment of all the dangers in operating and doing service an the equipment. - Page 4 14. Use a slow speed when moving the equipment to decrease sliding on surfaces with ice. 15. Use only Gravely accessories for the snow- blower and tractor. 16. Do not operate unless you can check the area visually.
- Page 5 SNOWBLOWERS, 28”, 34", 38" & 44" SNOWBLOWERS, 28", 34", 38" & 44" ITEM NO. PART NO. QTY. 419454 180044 20992 124553 20573 12134 14987 19731 19741 24560 20859 19740 21168 411027 20727 20728 NOTE: Circle A Pertains to 38" & 44" Riding Snowblowers Only FAN DRIVE FAN DRIVE DESCRIPTION...
- Page 6 CRANK ASSEMBLY ITEM NO. PART NO. QTY. 20984 20999 19340 20989 456542 21144 20997 20998 9630 9612 10211 120396 137185 21005 21020 9652 21022 454563 10210 20985 DESCRIPTION Bracket, Support Spring, Compression Race, Bearing Thrust; 1.002 x 1.552 x .030 Shaft Pin, Spring;...
- Page 7 SNOWBLOWERS, 28", 34", 38" & 44" REEL DRIVE ASSEMBLY...
- Page 8 ITEM NO. PART NO. 120392 6341 6339 9660 9659 20696 10325 9662 9661 20697 6485 11796 19794 103880 426767 10573 9668 12399 9657 181666 9667 12404 12401 12402 12403 274655 10579 120423 9669 12400 20699 10222 11797 19795 20698 10221 11802 19799 6494...
- Page 9 SNOWBLOWERS, 28" & 34" FRAME ASSEMBLY...
- Page 10 FRAME ASSEMBLY ITEM NO. PART NO. 180075 12409 10579 120394 456004 20706 6412 20707 6396 180020 419455 419454 413447 126485 180080 120392 180122 120518 6477 435507 120396 24379 180177 20703 20722 19479 20994 6404 10580 445339 20928 164354 6370 6496 180016 120622 6352...
- Page 11 SNOWBLOWERS, 38" & 44" FRAME ASSEMBLY...
- Page 12 FRAME ASSEMBLY ITEM NO. PART NO. QTY- 180075 11788 19791 10579 120394 456004 180020 11789 19792 12409 126485 120518 419454 419455 413447 180080 19479 435507 120396 180122 120392 24379 6477 126348 10580 445339 20994 6404 164354 20928 6370 6496 180016 120622 6352 10496...
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Page 13: Connecting The Snowblower To The Two Wheel Tractor
3.0 CONNECTING THE SNOWBLOWER TO THE TWO WHEEL TRACTOR 1. Install the Quick Hitch Pin Kit as shown in figure 3.0-1. 1 -Quick Hitch Pin 2 - Bolt 3 -Attachment Adapter 4 --- Bushing Figure 3.0-1 2. Put the bushing on the 1/2" x 2-3/4" Bolt and fasten to the upper, left quick hitch stud as shown in figure 3.0-1. -
Page 14: Operating The 28 Or 34 Inch Snowblower
4.0 OPERATING THE 28 & 34 INCH SNOWBLOWERS Read the tractor Operator's Manual. Know how to operate the tractor controls. 1. Adjust the skids shown in figure 4.0-1 to give ground clearance needed for the surface conditions. When removing snow from a gravel surface, adjust the skids to raise the snowblower to prevent gravel from going into the snowblower. -
Page 15: Connecting The Snowblower To The Four Wheel Tractor
NOTE: When going through the snow for the first time, a full width passage must be cut. The forward speed must be slow enough to permit the snow to go through the discharge chute without being stopped. 9. Put the Direction Control Lever in the forward position and make the first passage through the snow. - Page 16 3. Put the frame pivot rod of the snowblower support in the front attachment brackets and fasten with the hitch pins as shown in figure 5.0-3. 1. Frame Pivot Rod 2. Front Attachment Bracket 3. Hitch Pin 4. Universal Joint Shaft 5.
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Page 17: Operating The 38 Or 44 Inch
6.0 OPERATING THE 38 & 44 INCH SNOWBLOWERS Read the tractor Operator's Manual. Know how to operate the tractor controls. 1. Adjust the skids shown in figure 6.0-1 to give ground clearance needed for the surface conditions. When removing snow from a gravel surface, adjust the skids to raise the snowblower to prevent gravel from going into the snowblower. -
Page 18: Maintenance
11. On the next and remaining passages, cut as much snow as will go through the discharge chute without being stopped. 12. If the reel stops turning while the fan continues to turn, disengage the PTO, stop the engine and tighten the nuts on each end of the reel shown in figure 6.0-3 to a torque of 85 ft. - Page 19 Gravely product. Please complete the card and return it to Gravely at the address listed on the card. The registration card will be used by Gravely for. a. Recording date of purchase.