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Gravely ZT XL 42 - User Manual

Gravely ZT XL 42
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05102200C • 2/17
Printed in USA
ENGLISH
FRANÇAIS
E10
ZT X
Operator’s Manual
Manuel du Utilisateur
ZT XL
™
™
915202 – ZT XL 42
(SN 020000 +)
915204 – ZT XL 52
(SN 020000 +)
915206 – ZT XL 42
(SN 020000 +)
915216 – ZT XL 60
(SN 020000 +)
915218 – ZT XL 60
(SN 020000 +)
915230 – ZT X 52
(SN 020000 +)
915236 – ZT X 52 CARB
(SN 020000 +)
915238 – ZT XL 42 CARB
(SN 020000 +)
915240 – ZT XL 52 CARB
(SN 020000 +)
915242 – ZT XL 60 CARB
(SN 020000 +)
915172 – ZT X 42
(SN 020000 +)
915174 – ZT X 52
(SN 020000 +)
915176 – ZT X 42 CARB
(SN 020000 +)
915200 – ZT XL 52
(SN 020000 +)
Models

Table of Contents

Questions and Answers

  • R
    randallliuAug 20, 2025
    What to do if my Gravely Lawn Mower engine does not start?
    • J
      Jessica LevyAug 20, 2025
      If your Gravely Lawn Mower engine won't start, several factors could be at play. First, ensure the Safety Interlock System is properly engaged and functioning; if it's faulty, it needs checking. A depleted fuel tank is a common culprit, so replenish it with fuel. Contaminated fuel can also prevent starting, necessitating a replacement with clean fuel. Check the battery; if it's discharged, charge it. Poor connections between the battery and its cables can hinder starting, so tighten or clean them. Inspect the spark plug wires for looseness and examine the spark plugs themselves, replacing them if faulty. If these steps don't resolve the issue, there may be an electrical or engine fault, in which case you should contact your Gravely dealer.
  • C
    Christina GriffinAug 22, 2025
    Why won't my Gravely ZT XL 42 Lawn Mower engine start?
    • R
      Robyn KennedyAug 22, 2025
      There are several reasons why your Gravely Lawn Mower engine might not be starting. It could be due to the Safety Interlock System not being engaged or being faulty. Another reason could be that the fuel tank is empty or the fuel supply is contaminated, so you should fill the fuel tank or replace the fuel with clean fuel. Also, the battery might be discharged, or the connection between the battery and battery cables may be poor, so ensure to charge the battery or tighten/clean the battery and battery cables. Finally, the spark plug wires could be loose or the spark plugs faulty, so connect the spark plug wires or replace the spark plugs.
  • K
    Kaitlyn MooreAug 25, 2025
    How to improve cutting quality of my Gravely ZT XL 42 Lawn Mower?
    • C
      carolyn75Aug 25, 2025
      If your Gravely Lawn Mower exhibits poor cutting quality, several factors may be responsible. Ensure the mower blades are level and the mower deck pitch is correct. Dull or faulty mower blades will also impact cutting performance, so sharpen or replace them as needed. Avoid mowing at excessively high speeds, as this can compromise the cut quality. Inspect the belt tension and condition; replace the deck drive belt if it's in poor condition. Also, avoid setting the cutting height too low, and for very tall grass, consider mowing twice.
  • R
    Roberto PriceAug 26, 2025
    What to do if my Gravely ZT XL 42 Lawn Mower does not drive?
    • M
      Michael WilliamsAug 26, 2025
      If your Gravely Lawn Mower does not drive, ensure that the transaxles are engaged by checking and engaging the levers. If the problem persists, the ground drive belt may be faulty, or the transaxles themselves might be faulty, requiring you to contact your Gravely dealer.
  • L
    Lori RandallAug 27, 2025
    What to do if Gravely Lawn Mower has poor cutting quality?
    • P
      Pamela KiddAug 27, 2025
      If your Gravely Lawn Mower has poor cutting quality, consider the following: * Check if the mower blades are level or the mower deck pitch is incorrect. * See if the mower blades are dull or faulty—sharpen or replace them as needed. * Reduce your mowing speed. * Avoid setting the cutting height too low; for very tall grass, mow twice.
  • T
    Tonya WebbAug 29, 2025
    What to do if Gravely ZT XL 42 does not drive?
    • L
      Lisa WilliamsAug 29, 2025
      If your Gravely Lawn Mower isn't driving, the transaxles might be bypassed, so engage the levers.
  • M
    markmayAug 31, 2025
    Why is my Gravely Lawn Mower engine running rough?
    • B
      Brittany HillAug 31, 2025
      If your Gravely Lawn Mower engine is running rough, first check the choke control knob; if it's in the 'on' position (applicable to models 915204, 915206, 915218, 915230, 915236, 915238, 915240, 915242), move it to the 'off' position. Another potential cause is a plugged air filter cartridge, which should be cleaned or replaced. If neither of these resolves the issue, the engine itself may be faulty, and you should contact your Gravely dealer.
  • S
    Steven KhanSep 2, 2025
    What to do if PTO malfunctions on my Gravely ZT XL 42 Lawn Mower?
    • J
      Jorge HooverSep 2, 2025
      If the PTO (Power Take-Off) on your Gravely Lawn Mower is malfunctioning, start by ensuring the operator presence switch is engaged by sitting on the operator seat. If the issue persists, the operator presence switch may be faulty, and you should contact your Gravely dealer. Also, inspect the deck drive belt for any faults and replace it if necessary. If the problem continues, the PTO switch, wiring, connectors, or clutch may be faulty, requiring you to contact your Gravely dealer.
  • J
    james58Sep 4, 2025
    Why does my Gravely Lawn Mower engine overheat?
    • E
      elewisSep 4, 2025
      If your Gravely Lawn Mower engine overheats, start by checking the engine oil level and adding oil if it is low. Also, inspect the cooling fins for any blockages and clean the engine if necessary. If the issue persists, the engine itself may be faulty, and you should contact your Gravely dealer.
  • S
    Sydney GregorySep 6, 2025
    Why does my Gravely Lawn Mower move with engine off and parking brake engaged?
    • R
      roberttuckerSep 6, 2025
      If your Gravely Lawn Mower moves with the engine off and the parking brake engaged, the parking brake likely needs adjustment. Adjust the parking brake lever accordingly. If the issue persists, the parking brake itself may be faulty, and you should contact your Gravely dealer.

Summary

Safety Guidelines

Safety Decals

Understand and follow all safety decals for machine operation.

Hazard Identification

Learn about amputation, discharge, tipping, and service hazards.

Other Safety Hazards

Understand bystander, loss of traction, hot parts, and rotating parts hazards.

Operation Procedures

Before Operating Unit

Key checks and preparations before starting the engine.

Operating the Unit

How to start, control, and maneuver the unit during use.

Starting the Engine

Detailed steps for safely starting the engine under various conditions.

Stopping the Engine

Controls and Features

Ignition Key and Choke

Throttle and PTO Controls

Parking Brake and Steering

Maintenance

Maintenance Schedule

Recommended service intervals for various checks and tasks.

Safety Interlock System Check

How to test the safety interlock system for proper function.

Parking Brake Check

Engine Oil Check

How to check and maintain the engine oil level.

Tire Pressure Check

Mower Blade Maintenance

Procedures for removing, sharpening, balancing, and installing mower blades.

Battery Maintenance

Mower Belt Service

Ground Drive Belt Service

Hydraulic Oil

Check Hydraulic Oil Level

Add Hydraulic Oil

Change Hydraulic Oil and Filter

Procedures for changing the hydraulic fluid and filter.

Purge Hydraulic System

Adjustments

Adjust Seat

Steering Lever Adjustment

Parking Brake Lever Adjustment

Mower Deck Service

Remove and Install Mower Deck

Mower Deck Leveling and Pitch

Adjust deck height, level, and blade pitch for optimal cutting.

Troubleshooting

Engine Start and Running Issues

Solutions for engine not starting or running rough.

Drive and PTO Malfunctions

Troubleshooting for drive system, PTO, and operator presence issues.

Tracking and Creeping Problems

How to fix issues with unit not tracking straight or creeping.

Cutting Quality Issues

Solutions for poor cutting quality due to blades or speed.

Specifications

Model Specifications

Gravely ZT XL 42 Specifications

General IconGeneral
Engine BrandKawasaki
Engine Displacement726cc
Cutting Width42 inches
Transmission TypeHydrostatic
Deck MaterialSteel
Number of Blades2
Turning RadiusZero-turn
Fuel Capacity2.8 gallons
Speed7 mph
Wheel Size11 x 4 inches (front), 18 x 8.5 inches (rear)

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