Gravely HVZ User Manual

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Owner/Operator Manual

HVZ

00672400A 9/06

Printed in USA

ENGLISH

FRANÇAIS

ESPAÑOL

Model

915084 - 2350

915086 - 1840

Table of Contents

Questions and Answers:

L
lawrencerobertaAug 15, 2025
Why my Gravely Lawn Mower engine will not crank/start?
- H
  Holly Green DVMAug 15, 2025
  If your Gravely Lawn Mower engine won't crank or start, there are several potential causes. First, ensure the safety interlock system is properly engaged and not faulty. Next, check that the fuel tank isn't empty and fill it if necessary. A discharged battery could also be the culprit, so charge it. Examine the connections between the battery and battery cables for looseness or corrosion, tightening or cleaning them as needed. Inspect the spark plug wires for looseness or the spark plugs themselves for faults, connecting the wires or replacing the plugs. If these steps don't resolve the issue, there may be a fault in the electrical system or the engine itself, in that case you should contact your Gravely Dealer.
K
Katherine MorenoAug 19, 2025
What to do if Gravely HVZ does not move with steering levers?
- B
  Benjamin BarberAug 19, 2025
  If your Gravely Lawn Mower doesn't move when the engine is running and you're using the steering levers, the transmission bypass lever may be engaged; disengage it. Another possibility is a faulty hydrostatic belt, which would need to be replaced. If neither of these solutions works, the transmission itself might be faulty, requiring you to contact your Gravely Dealer.
K
Krystal KellyAug 22, 2025
Why does my Gravely HVZ Lawn Mower creep in neutral?
- M
  Michael RiggsAug 22, 2025
  If your Gravely Lawn Mower creeps with the steering levers in the neutral position, the hydrostatic transmission and/or linkage may need adjustment, and you should contact your Gravely Dealer.
J
Jacqueline MendezAug 26, 2025
What to do if PTO or mower blades do not engage on Gravely HVZ?
- C
  courtneyscottAug 26, 2025
  If the PTO or mower blades on your Gravely Lawn Mower do not engage or shut off, it could be due to several reasons. First, make sure the operator presence switch is depressed by sitting on the seat. Check if the electric clutch connector is loose or disconnected and connect it if needed. Another possible cause is a faulty PTO belt, which would require replacement. If these steps don't solve the problem, the issue might be a faulty operator presence switch, PTO switch, wires, connectors, or clutch. In such cases, it's best to contact your Gravely Dealer.
A
andrewcarsonAug 28, 2025
How to fix a Gravely HVZ Lawn Mower engine that runs rough?
- M
  Matthew MoralesAug 29, 2025
  If your Gravely Lawn Mower engine is running rough, it might be due to a few common issues. Check if the choke is engaged and disengage it. Another potential cause is a plugged air filter cartridge; clean or replace it. If the problem persists, the engine itself may be faulty, and it's recommended to contact your Gravely Dealer.
B
Bobby HughesAug 31, 2025
Why is my Gravely HVZ Lawn Mower engine overheating?
- J
  joseph11Aug 31, 2025
  If your Gravely Lawn Mower engine is overheating, it could be due to a few reasons. Start by checking the engine oil level and add oil if it's low. Another potential cause is a plugged cooling system, which you should clean. If the issue continues, the engine itself may be faulty, and it's recommended to contact your Gravely Dealer.
C
carolyn98Sep 4, 2025
How to improve cutting quality of Gravely Lawn Mower?
- K
  Kimberly BarnettSep 4, 2025
  If your Gravely Lawn Mower has poor cutting quality, the mower deck may not be level or the mower pitch is incorrect; level and adjust the pitch of the mower deck. Alternatively, the mower blades may be dull or faulty; sharpen or replace them.
F
Felicia JimenezSep 8, 2025
Why my Gravely Lawn Mower does not travel in a straight line?
- M
  Mrs. Heather JohnsonSep 8, 2025
  If your Gravely Lawn Mower doesn't travel in a straight line, it could be due to incorrect tire pressure; check and correct the tire pressure. Another possible cause is that the steering levers need adjustment; adjust the steering levers. If these steps do not resolve the issue, the hydrostatic transmission and/or linkage may need adjustment, and you should contact your Gravely Dealer.

Gravely HVZ Specifications

General

Brand	Gravely
Model	HVZ
Category	Lawn Mower
Language	English

Summary

Safety

Safety Decals and Locations

Safety Alerts

Explains the meaning of safety alert symbols and their importance.

Safety Rules

Hot Surfaces!

Caution

General cautions for operation, including no smoking and fuel handling.

Danger!

Dangers related to keeping hands/feet away and operating with guards.

Assembly

Unpack Unit

Place Unit in Operating Position

Check Safety Interlock System

Operation

Safety Interlock System

Tests to ensure the safety interlock system is functioning correctly.

Ignition Switch

Throttle Lever (915084)

Throttle Lever (915086)

Choke Control (915084)

Parking Brake

Power Take-Off (PTO) Switch

Steering Levers

Explains the forward, reverse, and turning functions of steering levers.

Mower Lift Pedal

Filling Fuel Tank

Stopping in an Emergency

Procedure for stopping the unit in an emergency.

Starting and Shutting Off Engine

Instructions for starting and stopping the engine.

Stopping the Engine

Steps to properly shut down the engine and unit.

Operating Mower

Steps for starting and operating the mower.

Transporting Unit

Moving Unit Manually

Maintenance Schedule

Each Use

Tasks to perform before each operation.

25 Hours or Every Season

50 Hours or Every Season

100 Hours or Every Season

Service and Adjustments

Seat Adjustment

Mower Deck Removal and Installation

Procedures for removing and installing the mower deck.

Levelling and Adjusting Pitch of Mower Deck

Guide to leveling and adjusting mower deck height and pitch.

The Forward Pitch of the Mower Blades

The Pitch of the Mower Blades From Side-To-Side

Adjusting The Mower Deck To Adjust Mower Blade Height And Pitch

Sharpening Mower Blade

Instructions for sharpening and balancing mower blades.

Servicing the Battery

Cleaning Battery and Battery Cables

Charging the Battery

Adjusting Steering Levers

Replacing PTO Belt

Replacing Hydrostatic Belt

Troubleshooting

Engine will not crank/start.

Common causes and corrections for engine starting issues.

Engine runs rough.

Common causes and corrections for rough engine operation.

Unit does not move with engine running when using steering levers.

Causes and corrections for unit not moving.

PTO or mower blades do not engage or shuts off.

Causes and corrections for PTO or blade engagement issues.

Engine overheats.

Causes and corrections for engine overheating.

Unit moves with engine off and parking brake engaged.

Causes and corrections for unit moving with engine off.

Unit does not travel in a straight line.

Causes and corrections for unit not tracking straight.

Unit creeps with steering levers in neutral position.

Causes and corrections for unit creep in neutral.

Poor cutting quality.

Causes and corrections for poor cutting performance.

Specifications

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Preview: 988105-HR1536FX, 988106-HR1548FX, 988107-HR1548FL, 988108-HE1748FL, 988109-HE1752FL, 988113-HR1544FX, 988116-HR1548FLP, 988117-H

988105-HR1536FX, 988106-HR1548FX, 988107-HR1548FL, 988108-HE1748FL, 988109-HE1752FL, 988113-HR1544FX, 988116-HR1548FLP, 988117-H