Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT User Manual

Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT

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Owner/Operator Manual

Models

915015 - 1742 ZT

915016 - 2048 ZT

01562700A 8/00

Supersedes 01562700

Printed in USA

ZT Zero Turn Mower

ENGLISH

FRANÇAIS

ESPAÑOL

Questions and Answers:

C
casey62Aug 19, 2025
What to do if my Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT Lawn Mower engine clicks but will not start?
- A
  Anthony WilliamsAug 19, 2025
  If your Gravely Lawn Mower engine clicks but doesn't start, the issue might be due to a weak or dead battery, so recharge or replace it. Another potential cause is corroded battery terminals, so clean them thoroughly. Also, check all wiring for any loose connections or damage. If the problem persists, the solenoid or starter may be faulty.
D
Daniel HoodAug 22, 2025
Why is my Gravely Lawn Mower engine hard to start?
- A
  Ashley BurtonAug 22, 2025
  If your Gravely Lawn Mower engine is hard to start, several factors could be responsible. Start by checking the air filter for dirt and clean or replace it as needed. A bad spark plug could also be the cause, so replace it. Ensure the battery isn't weak or dead; recharge or replace it if necessary. A dirty fuel filter or stale/dirty fuel can also cause starting issues, so replace the fuel filter and drain/refill the tank with fresh gasoline. If these steps don't resolve the issue, the carburetor may be out of adjustment.
C
collinsdianaAug 26, 2025
What to do if my Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT Lawn Mower battery will not charge?
- A
  Angela BennettAug 26, 2025
  If your Gravely Lawn Mower battery isn't charging, it could be due to bad battery cells, so consider replacing the battery. Another cause might be poor cable connections, so check and clean all connections. If those steps don't help, the regulator or alternator may be faulty.
M
Mr. Joshua Brown MDAug 28, 2025
How to fix excessive vibration in my Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT Lawn Mower?
- P
  palmerbillyAug 28, 2025
  Excessive vibration in your Gravely Lawn Mower can be caused by several factors. Check the blades for wear, bends, or looseness; replace them if necessary and tighten the blade bolt. Also, a bent blade mandrel could be the culprit, so consider replacing it. Finally, inspect for any loose or damaged parts and tighten or replace them as needed.
M
Michael BushAug 31, 2025
How to troubleshoot uneven cut or poor grass discharge with my Gravely Lawn Mower?
- J
  Jason FernandezAug 31, 2025
  Uneven cutting or poor grass discharge from your Gravely Lawn Mower could stem from several issues. Start by inspecting the blades for wear, bends, or looseness; replace if needed and tighten the blade bolt. Ensure the mower deck is level. Clean any buildup of grass, leaves, and trash from under the mower. Check for a bent blade mandrel and replace if necessary. Make sure the engine speed isn't too slow by placing the throttle control in the “FAST” position and that you are not traveling too fast. Avoid mowing wet grass, and check your tires for proper and even air pressure. Ensure the blades are installed correctly with the sharp edge down and that you are using the correct blades.
B
brandy26Sep 3, 2025
How to fix my Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT headlight if it's not working?
- R
  Robert AdamsSep 3, 2025
  If the headlight on your Gravely Lawn Mower isn't working, start by checking if the bulb(s) have burned out and replace them if needed. Also, inspect the wiring for looseness or damage. Finally, check and replace the fuse if it has blown.
J
Janice TaylorSep 6, 2025
What causes a Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT engine to “backfire” when turning engine “OFF”?
- K
  Kelly MitchellSep 6, 2025
  If your Gravely Lawn Mower engine “backfires” when turning it “OFF”, it is likely because the engine throttle control was not set at the “SLOW” position for 30 seconds before stopping the engine. Move the throttle control to the “SLOW” position and allow it to idle for 30 seconds before stopping the engine.
K
Kristina LoweSep 9, 2025
Why won't the mower blades rotate on my Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT Lawn Mower?
- A
  Andre ColeSep 9, 2025
  If the mower blades on your Gravely Lawn Mower won't rotate, there might be an obstruction in the clutch mechanism, so remove any obstructions. Another possibility is a worn or damaged mower drive belt, so replace it. Also, check for a frozen idler pulley or blade mandrel, and replace them if necessary.
H
heatherscottSep 12, 2025
What causes a Gravely Lawn Mower unit to not track straight?
- R
  Randall WeaverSep 12, 2025
  If your Gravely Lawn Mower unit isn't tracking straight, it could be due to improper air pressure in the tires. Check and adjust the tire pressure, being careful not to exceed the maximum recommended pressure. Another potential cause is that the eccentrics are out of alignment.

Gravely 915015 - 1742 ZT, 9150156 - 2048 ZT Specifications

General

Brand	Gravely
Model	915015 - 1742 ZT, 9150156 - 2048 ZT
Category	Lawn Mower
Language	English

Summary

Controls and Features

Steering Control Levers

Controls for directional movement and speed.

Safety Alerts and Decals

Safety Alerts and Symbols

Explains symbols used for safety warnings and their meanings.

Operational Safety Practices

Danger: Rotating Parts and Guards

Warning about rotating parts and keeping guards in place.

Advanced Safety Procedures

Slope Operation Safety

Guidelines for safely operating the tractor on slopes and inclines.

Personal Safety and Attire

Recommendations for operator attire and personal protective equipment.

Assembly

Pre-Operation Checks

Essential checks before first use, including deck, battery, oil, and tires.

Operation

Controls and Features Overview

Explains key controls like ignition, choke, parking brake, and PTO.

Throttle Control Operation

How to adjust engine speed using the throttle lever.

Power Take Off (PTO) Switch

How to engage and disengage the mower deck and other attachments.

Travel/Speed Control Levers

Operation of levers for forward, reverse, and speed control.

Maneuvering and Attachment Height

Neutral Lock and Movement Controls

Explains how to lock the unit in neutral and operate movement controls.

Attachment Lift Lever Operation

How to adjust the cutting height using the lift lever.

Prestart Procedures

Check Engine Oil Level

Steps to check and maintain the engine oil level.

Check Fuel Level

How to check and add fuel to the tank safely.

Starting and Operating the Mower

Starting the Engine

Detailed steps for starting the engine in various conditions.

Stopping the Engine

Operating the Mower

How to engage and use the mower attachment.

Advanced Operation and Mowing

Operating on Hills

Safety guidelines and procedures for mowing on slopes.

Stopping Procedures

Maintenance

Maintenance Schedule

Routine checks and services for tractor, deck, and engine.

Before Each Use Checks

Component Checks and Blade Maintenance

Operator Presence System Check

Blade Removal and Installation

Steps for removing, installing, and balancing mower blades.

Sharpening Mower Blades

Battery Maintenance and Safety

Check Battery Status

Battery Removal and Installation

Engine Maintenance

Engine Oil Level and Filter Change

Procedures for checking and changing engine oil and filter.

Air Filter and Air Screen Cleaning

Spark Plugs and Fuel Filter Replacement

Service and Adjustments

Preparations for Service

Safety precautions before performing any service or adjustments.

Remove 48" Mower Deck

Install 48" Mower Deck

Mower Deck Service and Height Adjustment

Remove 42" Mower Deck

Install 42" Mower Deck

Mower Height Adjustment

Chart and procedure for setting the cutting height.

Mower Leveling and Pitch Adjustment

Leveling the Mower

Procedures for checking and adjusting mower deck side-to-side level.

Mower Pitch Adjustment

How to adjust the front-to-rear pitch of the mower deck.

Belt Replacement Procedures

Clutch to Deck Belt Replacement (48" & 42" Decks)

Mower Deck Belt Replacement (48" & 42" Decks)

Transaxle Belt Replacement

Transaxle Belt Replacement Procedure

Clutch Shaft Belt and Steering Adjustments

Clutch Shaft Belt Replacement

Adjusting Unit to Track Straight

How to adjust steering control levers for proper tracking.

Troubleshooting: Engine Start Issues

Engine Will Not Start or Loses Power

Diagnosing and correcting problems with engine starting.

Engine Hard to Start

Engine Clicks but Will Not Start

Troubleshooting: Operation and Performance Issues

Engine Run-On and Backfire Issues

Vibration, Charging, and Blade Issues

Cut Quality and Tracking Issues

Specifications

Tractor Specifications

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