Gravely 20980, 20981, 20982, 20979 User Manual

GRAVELY

MANUAL

OPERATOR'S

NAME: GRAVELY SNOWBLOWERS

PART NUMBER(S): 28”

34”
38”
44”

- 20979

- 20981

- 20980

- 20982

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, Form No: 24729 (6-78) Printed in U.S.A.
the manufacturer reserves the right to change specifications,
designs and prices without notice and incurring obligation.

CONTENTS

1.0 ....................................................SAFETY PRECAUTIONS

2.0 ....................................................ILL UST R ATE D PA RTS LIS T

3.0 ................................................... CONNECTING THE SNOWBLOWER TO THE

TWO W HEEL TRACTOR

4.0 ....................................................OPE RAT ING THE 28 or 3 4 INCH

SNOWBLOW ER

5.0 ................................................... CONNECTING THE SNOW BLOWER TO THE

FOUR WHEEL TRACTOR

6.0 ................................................... OPERATING THE 38 or 44 INCH

SNOWBLOWER

7.0 ....................................................MA INT E NAN CE

8.0 ....................................................STORAGE

1.0 SAFETY PRECAUTIONS

The information in this Operator's Manual must be followed to do service

and for safe operation of this equipment.

Using this equipment the wrong way can cause injury to persons and
damage to the equipment. Persons using or doing maintenance on this
equipment must read this Operator's Manual and follow the instructions.

It is important to understand that the warnings in this Operator's Manual
and any other instruction book do not list every possible danger. 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.

The purchaser must give these instructions to the persons operating and
doing maintenance on this equipment. The purchaser must get the operator and
person doing maintenance on this equipment to use eye and foot protection.

1.1 TRAINING

1. Read the Operator's Manual and learn the
function of the tractor's controls. Know how to
stop the tractor and snowblower drive fast.

2. Never let children operate the equipment.

3. Let adults operate the equipment only after
reading and understanding the instructions in
this Operator's Manual.

1.2 PREPARATION

1. Before snowfall, inspect the area of operation
and remove all material that will be thrown, stop
or do damage to the snowblower.

2. Put 'the Direction Control lever in the neutral
position and the PTO control in the OFF position
before starting the engine.

3. Use foot protection that will decrease sliding.

4. Use caution when putting gasoline in the fuel
tank.

5. Use a clean and tight fuel container.

6. Never put gasoline in the fuel tank while the
engine is running.

7. Never put gasoline in the fuel tank while the
tractor is inside a building.

8. Clean off any gasoline that falls on the tractor
before starting the engine.

9. Lower the snowblower skids to give ground
clearance needed to stop gravel from going into
the snowblower.

1.3 OPERATION

1. Keep away from moving parts.

2. Keep away from the discharge chute.

3. Never use the tractor for person transport.

4. Put the PTO control in the OFF position, turn
the ignition switch to the OFF position and wait
until the engine and moving parts stop before
leaving the tractor seat or operator's position to
make adjustments, repairs, or give service.

5. After hitting some material, put the PTO control
in the OFF position and turn the ignition switch
to the OFF position_ Make repairs before
restarting.

6. Vibration or sound change is a warning that
damage has been done. Make repairs before
operating the equipment.

7. Never start and run the engine inside a building
except to move the equipment outside.

8. The snowblower auger or impeller can be
stopped by too much ice, snow or debris while
the engine is still giving power to the
snowblower. Severe injury to the person can be
caused when cleaning the snowblower while the
engine is running. NEVER CLEAN THE

SNOWBLOWER WITH THE ENGINE
RUNNING.

9. When removing snow from a slope, go up and
down the slope, never across.

10. Use caution when changing direction on
slopes.

11. Never operate the snowblower without all safety
equipment being in place.

12. Discharge the snow away from any area
where the snow can cause damage.

13. The forward speed must be slow enough to
permit the snow to go through the snow­blower without being stopped.

14. Use a slow speed when moving the equipment to
decrease sliding on surfaces with ice.

15. Use only Gravely accessories for the snow­blower and tractor.

16. Do not operate unless you can check the area
visually.

17. Run the snowblower a short time after
blowing snow to decrease freezing of the
collector/impeller.

18. After using the snowblower, disengage the PTO
and stop the engine and remove all sno w an d
ice before putting the snow-blower in
storage.

19. Never put the tractor in storage with gasoline
in the fuel tank.

SNOWBLOWERS, 28”, 34", 38" & 44"

FAN DRIVE

SNOWBLOWERS, 28", 34", 38" & 44"

FAN DRIVE

ITEM NO.

PART NO. QTY. DESCRIPTION
1 419454 2 Nut, Lock; 1/4-20 Washer Insert
2 180044 1 Bolt, Hex; 1/4-20 x 2
3 20992 1 Weldment, Drive Shaft
4 124553 1 Key, Woodruff; 1/4 x 1 Hard No. 15
5 20573 1 Kit, Repair Universal Joint Neapco 1605x

12134 1 Kit, Repair Universal Joint Rockwell Std.
6 14987 4 Ring, Retaining; 1.00 Shaft
7 19731 1
8 19741 1 Bearing, Ball; 1.000 x 1.850 x .472
9 24560 1 Kit, Repair Universal Joint (Neapco)

10 20859 2 Ring, Retaining
11 19740 1 Support
12 21168 1 Assembly, U--Joint; Double; Applies to 28" & 34" Only
13 411027 1 Fitting, Lube; 1/4-28 Lube; 1/4-28
14 20727 1 Joint, Universal; Rect. Shaft
15 20728 1 Joint, Universal; Rect. Tube
16 Refer to Reel Drive Assembly

NOTE: Circle A Pertains to 38" & 44" Riding Snowblowers Only

Weldment, Fan

SNOWBLOWERS, 28", 34", 38" & 44"

CRANK ASSEMBLY

ITEM NO. PART NO. QTY. DESCRIPTION

1 20984 1 Bracket, Support
2 20999 1 Spring, Compression
3 19340 1 Race, Bearing Thrust; 1.002 x 1.552 x .030
4 20989 1 Shaft
5 456542 2 Pin, Spring; 3/16 x 1-1/2
6 21144 1 Eye, Single
7 20997 1 Assembly, Cable
8 20998 1 Support

9 9630 2 Clamp, Hose SAE; Type F
10 9612 1 Connector
11 10211 1 Grip, Handle
12 120396 1 Washer, Flat; .500 x 1.062 x .095
13 137185 1 Pin, Cotter; .125 x 1.00
14 21005 1 Weldment, Crank Support; 38" & 44"
15 21020 1 Decal, Snowblower Discharge
16 9652 1 Crank, 28" & 34" Snowblower

21022 1 Crank, 38" & 44" Snowblower
17 454563 1 Pin, Spring; 3/16 x 7/8 Cap
18 10210 1 Cap, Stud
19 20985 1 Weldment, Crank Support; 28" & 34"