Gravely 991262 User Manual

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EN - 23

3. Return seat to operating position and

slide seat back and forth to spread

grease along tracks.

CHECK MOWER BLADES

Check blades for wear and damage. Replace

or sharpen as needed.

CHECK BATTERY

Clean Battery

1. Disconnect battery cables, negative cable

first.

2. Clean terminals and battery cable ends

with a wire brush.

3. Coat terminals with dielectric grease or

petroleum jelly.

4. Reinstall battery cables, positive first.

CHECK MOWER BELTS

Check belts for wear and replace as needed.

CHECK HYDRAULIC SYSTEM

Check Hydraulic Oil Level

1. Place unit in service position. See

Service Position on page 21.

2. Check oil level in expansion tanks. Oil

should reach the cold fill indicator mark.

See Figure 28.

IMPORTANT: Engine should be cold when

checking initial oil level.

CAUTION: AVOID INJURY. Use

sturdy gloves or padding to

protect hands when working with

mower blades.

Rotation of one blade rotates the

other blades.

CAUTION: Unbalanced blades

cause excessive vibration and

eventual damage to unit.

Balance blades before

reinstalling on unit.

NEVER weld or straighten

blades.

WARNING: Battery posts,

terminals and related

accessories contain lead. Wash

hands after handling.

Figure 27

CAUTION: AVOID DAMAGE.

DO NOT allow tools to contact

metal surfaces when removing

positive battery cable.

CAUTION: Keep body parts

away from idler when

releasing idler spring tension.

Figure 28

1. Cold Fill Line

1

Table of Contents

Questions and Answers:

B
brittanycollinsAug 13, 2025
How to troubleshoot starting issues with my Gravely Lawn Mower?
- J
  Jonathan BarnesAug 14, 2025
  If your Gravely Lawn Mower engine doesn't start, there are several potential causes. First, the safety interlock system might not be engaged or could be faulty. Also, the fuel tank could be empty, or the fuel supply might be contaminated, requiring replacement with clean fuel. The battery could be discharged, needing a charge. A loose connection between the battery and cables can also prevent starting, so ensure they are tightened and clean. Spark plug wires might be loose, or the spark plugs themselves could be faulty, requiring connection or replacement. In some cases, the electrical system or the engine itself might be faulty, in which case you should contact your Gravely dealer.
A
Amber SmithAug 17, 2025
What to do if my Gravely 991262 Lawn Mower does not drive?
- G
  Gary MooreAug 17, 2025
  If your Gravely Lawn Mower does not drive, one potential cause is that the transaxles are bypassed. If this is the case, engage the levers. It's also possible that the transaxle drive belt is faulty, or that the transaxles themselves are faulty, which would require contacting your Gravely dealer.
C
Christopher LawrenceAug 21, 2025
Why is my Gravely 991262 Lawn Mower's cutting quality so poor?
- C
  charles29Aug 21, 2025
  If your Gravely Lawn Mower exhibits poor cutting quality, several factors could be responsible. First, the mower blades might not be level, or the mower deck pitch could be incorrect. It's also possible that the mower blades are dull or faulty, requiring sharpening or replacement. Another factor could be mowing speed is too fast, so try driving slower when cutting grass. Also, belt tension or condition might be poor, requiring replacement of mower belts. Finally, the cutting height might be too low, so avoid setting the height of cut too low, and for very tall grass, mow twice.

Gravely 991262 Specifications

General

Model	991262
Category	Lawn Mower
Cutting Width	52 inches
Deck Material	Steel
Cutting Height	1.5 - 4.5 inches

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