Gravely Promaster 300 User Manual (English)

Other manuals for Gravely Promaster 300

Questions and Answers:

D
Dr. Lauren Lester DVMJul 27, 2025
Why does my Gravely Promaster 300 Lawn Mower solenoid click but not start?
- M
  Mrs. Melissa Collins MDJul 27, 2025
  If you hear a clicking sound from the solenoid but the starter doesn't engage on your Gravely Lawn Mower, it could be due to a discharged battery, so charge or replace it. Another potential cause is corrosion on the battery cable connectors; clean them thoroughly. In some cases, the starter itself may be damaged and needs replacement (contact Dealer).
C
Christopher WagnerAug 1, 2025
What causes a Gravely Lawn Mower battery to keep discharging?
- C
  Christopher ColonAug 1, 2025
  A discharged battery in your Gravely Lawn Mower can stem from several sources. It could be a regulator-rectifier failure, in which case you should replace the regulator or rectifier. Check the fuse holder and replace it if necessary. The engine alternator might have failed, requiring replacement. Finally, the battery itself could be failing, so try charging or replacing it.
M
Mark MatthewsAug 5, 2025
What to do if my Gravely Promaster 300 Lawn Mower will not crank?
- P
  Paul JohnsonAug 5, 2025
  If your Gravely Lawn Mower will not crank, charge the battery or replace it.
E
Erin KellyAug 9, 2025
What to do if my Gravely Lawn Mower makes no sound when I turn the key?
- W
  William StewartAug 10, 2025
  If your Gravely Lawn Mower makes no sound when you turn the ignition switch to the 'Start' position, several issues could be the cause. First, make sure the PTO control is disengaged and the direction control pedal is in neutral. Check and adjust the neutral switches if necessary. Inspect the fuse and replace it if it's blown. The battery may be discharged, so charge or replace it. A bad relay or loose battery cables can also be responsible, so replace the relay (contact Dealer) or tighten the battery cable clamp.
D
David CastroAug 13, 2025
What to do if Gravely Promaster 300 starter works but engine won't start?
- C
  Chelsea GriffinAug 13, 2025
  If the starter operates but the engine of your Gravely Lawn Mower doesn't start, consider these possibilities: A bad relay or relay connection might be the issue, so replace the relay or connections (contact Dealer). Ensure the fuel tank isn't empty and the fuel valve is turned on. Also, check the engine spark plugs for fouling and clean or replace them. If none of these resolve the issue, there may be an engine failure (see Engine Manual).
B
blackannaAug 18, 2025
Why does my Gravely Promaster 300 keep running after I turn it off?
- K
  Kristen CalhounAug 18, 2025
  If your Gravely Lawn Mower engine continues to run even when the ignition is in the 'Off' position, it could be due to a disconnected ground wire; connect it firmly to a clean, metal surface. Alternatively, the ignition switch might have failed, requiring replacement (contact Dealer).
K
Kimberly SanchezAug 22, 2025
Why does the fuse blow when starting my Gravely Lawn Mower?
- M
  Mark HarrisAug 22, 2025
  If the fuse blows when starting the engine of your Gravely Lawn Mower, it indicates a short circuit in the system. Inspect for worn, damaged, or broken wires and contact Dealer.

Gravely Promaster 300 Specifications

General

Engine Displacement	725 cc
Transmission	Hydrostatic
Deck Type	Fabricated
Engine	Kohler Command Pro
Cutting Height	1.5 - 5 inches

Summary

CONTROLS AND FEATURES

Handlebar

Steering control for directional movement.

Ignition Switch

Starts and stops the engine.

PTO Switch

Engages or disengages the Power Take-Off.

Parking Brake Lever

Engages or disengages the parking brake.

SAFETY

Safety Alert Symbol

Alerts users to important safety precautions and potential hazards.

Practices and Laws

Emphasizes safe working practices and adherence to local laws.

Required Operator Training

Stresses the need for proper training for unit operation.

Safety Decals and Locations

Details the importance and placement of safety decals on the unit.

SAFETY RULES

Walk Around Inspection

Procedure to inspect the unit and work area before operation.

Personal Safety

Guidelines for operator protection, including clothing and awareness.

Operational Safety

Rules for safe operation, including terrain, visibility, and children.

ASSEMBLY

OPERATION

Mower Lift Lever Operation

How to operate the hydraulic lift lever for the mower deck.

Ignition Switch Operation

Using the ignition switch to start and stop the engine.

PTO Switch Operation

Engaging and disengaging the Power Take-Off (PTO) switch.

Control Operations

Direction Control Pedal

Detailed steps for using the direction control pedal for movement.

Seat Adjuster

Procedure for adjusting the operator's seat position.

Choke Control

Steps for using the choke control for starting a cold engine.

Key Operating Procedures

Prestart Checks

Essential checks to perform before starting the engine.

Starting the Engine

Instructions for safely starting the engine.

Mowing Operation

Steps for engaging the mower and performing mowing tasks.

Stopping and Parking

Procedures for safely stopping and parking the unit.

Moving Unit Manually

Instructions for manually pushing or moving the unit.

MAINTENANCE

Maintenance Schedule

Table outlining maintenance tasks and intervals for tractor and engine.

General Recommendations

Important advice on performing maintenance and warranty compliance.

Before Each Use

List of checks and tasks to perform before every use.

Maintenance Checks

Check Safety Interlock System

Procedure to verify the safety interlock system is functioning correctly.

Check Parking Brake

Instructions for checking and repairing the parking brake.

Lubrication

Details on applying grease and oil to various lubrication points.

Specific Maintenance Tasks

Checking the Hydraulic Fluid

Procedure for checking hydraulic fluid levels and potential hazards.

Change Engine Oil and Filter

Instructions for changing engine oil and filter for optimal performance.

Check Air Cleaner

Importance of inspecting and maintaining the air cleaner for engine health.

SERVICE AND ADJUSTMENTS

Replacing the PTO Clutch Belt

Steps for replacing the PTO clutch belt on models with idler springs or rods.

Replacing the Transmission Belt

Procedure for replacing the transmission belt on models with idler springs or rods.

Battery Maintenance

Checking the Battery Fluid

Procedure for checking battery fluid levels and safety precautions.

Cleaning Terminals

Steps for cleaning battery terminals to ensure good performance.

ADJUSTMENTS

Adjustment of Transmission Neutral

Procedure for adjusting the transmission neutral stop mechanism.

Adjustment of Direction Control Pedal

Steps for adjusting the direction control pedal clearance.

STORAGE

Unit Storage

Guidelines for safely storing the unit, including fuel and battery.

Accessories

List of optional accessories available for the unit.

Attachments

List of optional attachments available for the unit.

TROUBLESHOOTING

SPECIFICATIONS

WARRANTY

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