Gravely CONVERTIBLE 7.6 User Manual

THANK YOU for your investment in Gravely equipment. It is an

investment, for the Gr avely will save you work and worry for many years.

You will gain still greater satisfaction from your Gravely if you add the
tools you need for your other jobs. From tim e t o t im e we sugg est you
consult your dealer for the many Gravely attachment s that will eliminate
grounds upkeep and garden drudg er y.

Your Gravely Tractor and attachments are warrant ed under t er ms
shown herein. To qualify for this Warranty, you must register your tractor
by completing the enclosed Registration Card and ret ur ning it. For your
own protection, please do this right away.

To continue its program of quality and design improvement,
the manufacturer reserves the right to change specifications,
design or prices without notice and without incurring
obligations.

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TABLE OF CONTENTS

Safety Instructions 3
Introductions 4
Operation 5
Starting 5
Operating the Tractor 6
Maintenance 7
Specifications 9
Attachments 10
30" Rotary Mower 10
30" Rotary Mower Attachments 11
40" Rotary Mower 12
Sickle Mower 13
Lawn Care 14
Twin Tool Gardening 15
Cultivator Toolholder 17
Snowblower 18
48" Snowdozer 19
Steering Sulky 20
Riding Sulky 20

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SAFETY INSTRUCTIONS

TRAINING

1. Read the Instruction Manual carefully. Be thoroughly familiar with the controls and
proper use of the equipment.

2. Never allow children to operate tractor.

3. Keep the area of operation clear of all persons, particularly small children and pets.

PREPARATION

1. Thoroughly inspect the area where the equipment is to be used, remove all foreign
objects.

2. Do not operate equipment when barefoot or wearing open sandals.

3. Check fuel before starting engine. Do not fill gasoline tank indoors, when engine is
running or while engine is still hot. Wipe off any spilled gasoline before starting
engine.

4. Check to be sure PTO is disengaged and put Forward-Reverse and High-Low in
neutral before starting engine.

5. Never attempt to make an adjustment on attachments while engine is running.

6. Operate only in daylight or in good artificial light.

7. Always be sure of your footing; keep a firm hold on the handles and walk; never
run.

OPERATION

1. Do not change engine governor settings to overspeed engine.

2. Do not put hands or feet near or under rotating parts. Keep clear of discharge
openings at all times.

3. Stop mower attachment when crossing gravel drive, walks or roads.

4. If a foreign object is struck, stop engine and thoroughly inspect the attachment and
tractor for any damage, and repair the damage before restarting and operating the
attachment.

5. If the equipment should start to vibrate abnormally, stop the engine and check
immediately for the cause. Vibration is generally a warning of trouble.

6. Stop engine and wait until all moving parts have come to a complete stop before you
leave the equipment.

7. When cleaning, repairing or inspecting, make certain all moving parts have stopped.
Disconnect spark plug wire and keep wire away from plug to prevent accidental
starting.

8. Do not run engine indoors without proper ventilation.

9. Exercise extreme caution when changing direction on slopes. Do not mow
excessively steep slopes.

MAINTENANCE AND STORAGE

1. Keep all nuts, bolts, and screws tight to be sure equipment is in safe working
condition.

2. Never store equipment with gasoline in the tank inside of a building where fumes
may reach an open flame or spark. Allow engine to cool before storing in any
enclosure.

3. Keep engine free of grass, leaves, debris, or excessive grease to prevent overheating
and possible fire hazard.

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The G

ible 7.6 T

INTRODUCTION

ravely Convert
Custom and the Super. The Super has the added feature of electric starter
and governor.

The Convertible 7.6 Tractor is powered by a Gravely engine producing 7.6

horsepower. All gear drive allows power to be transmitted directly from
the engine to the power attachment by steel shafts and gears.

The Convertible 7.6 offers year-around, all-season versatility with many

different attachments available. Out-front mounting of most attachments
gives you maximum visibility and safety.

This tractor will give you highly satisfactory service if maintained and

operated as outlined in this manual.

All references to Left Hand and Right Hand; front and rear are given from

the operators position, as you stand behind the tractor.

For detailed service information, a service manual is available through your

dealer or through the home office.

It is important that you know the Serial Number of your tractor. The Serial

Number is located on the Left Hand side of the advance casting. See
Figure 1. The serial number of your tractor is

For your future reference, please fill in your serial Number as soon as

possible.

Please refer to this number on all correspondence concerning your tractor to

expedite prompt response to your needs.

ractor is available in two models - the

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OPERATION

Throttle - Depress the throttle to accelerate engine, raise

to decelerate engine.

Choke - Pull to choke; push forward fully for normal

operation.

Operating Levers

ow speeds and one for forward and reverse are located
on the right tractor handle.

Range Control - On tractors with the optional eight spee

transmission, the range selector lever is on the right by
the fuel tank. Push forward fully for low range; pull
rearward fully for high range.

Attachment Clutch Control

control is the attachment clutch lever that enables you
to engage or disengage the power attachment from
your position at the tractor handles. Pull to engage the
attachment; push to disengage.

Ignition Stop Button

ignition stop button. Keep depressed until the engine
stops completely.

- The operating levers, one for high an

- The attachment clutch

- To stop engine, depress the

Figure 2

STARTING

Whether you have a manual starter or an electric starter,
before starting check to see if:

Operating levers are in neutral .

Attachment clutch control is in the disengaged

position .
Valve on fuel tank is open and fuel in tank
Oil level is on full mark .
Throttle is open approximately half-way .

An attachment or attachment boss cover is secured

to the front of the tractor.

Normal Starting - On tractors with the manual starter,
attach the strap to the pulley (place the hole in the strap
over the pin in the pulley groove) and wind the strap onto
the pulley in the direction of the arrow on pulley. Pull the
strap hard and fast. Choke as required. With the electric
starter, simply press the starter button with your toe.
Choke as required.
NOTE: In proper working order, the engine should start
with one or two attempts (a few more may be necessary
in cold weather). If it doesn't, check the Trouble Shooting
section to find and correct the trouble. Do not tamper with
the carburetor - this will serve only to complicate things,
for even with the carburetor out of adjustment, the engine
should start.

Cold Weather Starting - Cold weather starting troubles
usually can be avoided if you:

Make sure the proper weight oil is used. Oils heavier
than those recommended will stiffen at low
temperature thus making starting more difficult .
Use fresh high quality regular grade gasoline .
Store the tractor in a heated building if possible.

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OPERATING THE TRACTOR

Figure 3 Figure 4

When starting the tractor, have high-low and

forward-reverse control levers in neutral and the
attachment clutch control pushed forward fully in the
disengaged position.

If the tractor is the eight speed transmission model the

Range Selection Lever should be in the position for the
range in which the tractor will be operated initially.

Engaging

the high-low control lever to either the high or low
position (figure 3). Then move the forward-reverse
control lever into forward or reverse. Depress the
throttle to the desired speed.

NOTE: WITH ONLY THE HIGH-LOW CONTROL LEVER

IN HIGH OR LOW, THE TRACTOR WILL NOT MOVE.

Engaging Power Attachment

a power attachment in gear, be sure that the tractor is
stopped, with high-low and forward-reverse control in
neutral and the engine running at idle speed.

After the attachment is engaged, increase the engine

speed to about half-throttle. Move the high-low control
lever to high or low.

Braking

brake when you must stop. Move the lever out of
forward, pass through neutral, and apply pressure at
reverse position -enough pressure to stop the forward
motion of the tractor.

STANDARD TRANSMISSION

transmission models have four speeds - high and low
in forward and high and low in reverse. These speeds
control both ground speed and attachment speed, with
low gear having about 75% of the speed obtainable in
high gear.

wheels

- The forward-reverse control lever is used as a

- To put tractor in motion, first move

- Before attempting to put

- The standard

EIGHT-SPEED TRANSMISSION

transmission models feature a two-speed axle giving the
tractor four speeds forward and four speeds in reverse.

Shifting the axle between high and low ranges controls

only the tractor's ground speed. Shifting the high-low
control lever between high and low provides a further
control over ground speed as well as attachment speed.

To change axle ranges

high-low control lever in high or low, but move the

forward-reverse control to neutral. Move the range
selection lever to high or low range. Move the
forward-reverse control lever back and forth slightly if
necessary to allow the gears to mesh.

CAUTION: THIS SHIFT SHOULD ONLY BE MADE ON

LEVEL GROUND.

Individual jobs will dictate the combination of axle range

and gear to be used. In general, low axle range should
be used for plowing, cultivating, snow blowing, heavy
mowing, and other jobs where a slower ground speed is
needed to give the attachment longer to do its job. High
axle range generally is satisfactory for mowing and other
lawn jobs.

Other Points

speed of the tractor too fast for the job, shift to a lower
gear. If you can't shift any lower, take a smaller cut - one
on which the attachment can do the job with the tractor
fully in gear. Repeated clutch slipping causes undue
wear and should be avoided.

To shut off the engine, depress ignition stop button (figure

2) after disengaging attachment and moving both
operating levers to neutral.

- Don't slip the clutch. If you find the ground

: Stop the tractor. Keep the

STOPPING

- The eight speed

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