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Gravely ZT XL 48 - User Manual

Gravely ZT XL 48
40 pages
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05278700B • 2/21
Printed in USA
ENGLISH
FRANÇAIS
E10
ZT X
Operator’s Manual
Manuel du Utilisateur
ZT XL
™
™
Models
915255 – ZT X 42
(SN 000101 +)
915256 – ZT X 52
(SN 000101 +)
915257 – ZT X 52
(SN 000101 +)
915258 – ZT XL 52
(SN 000101 +)
915259 – ZT XL 42
(SN 000101 +)
915260 – ZT XL 60
(SN 000101 +)
915261 – ZT XL 48
(SN 000101 +)
915262 – ZT XL 42
(SN 000101 +)
915263 – ZT XL 52
(SN 000101 +)
915264 – ZT XL 60
(SN 000101 +)
915274 – ZT X 60
(SN 000101 +)
915278 – ZT XL 48
(SN 000101 +)

Table of Contents

Questions and Answers

  • D
    Diana BerryAug 12, 2025
    Why won't my Gravely Lawn Mower engine start?
    • P
      Paul MartinAug 12, 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
    kimberly68Aug 16, 2025
    What to do if Gravely ZT XL 48 has poor cutting quality?
    • A
      Ashley MaysAug 16, 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
    Tammie ZamoraAug 20, 2025
    What to do if Gravely ZT XL 48 does not drive?
    • R
      Robert DavidAug 20, 2025
      If your Gravely Lawn Mower isn't driving, the transaxles might be bypassed, so engage the levers.
  • M
    Madeline CantuAug 25, 2025
    Why does my Gravely ZT XL 48 engine run rough?
    • R
      Ryan FoleyAug 25, 2025
      A rough-running engine in your Gravely Lawn Mower could be caused by a few things. If your model is 915255, 915256, 915257, 915261, 915262, 915263, 915264, or 915274, check that the choke control knob is in the off position. Also, the air filter cartridge might be plugged, so clean or replace it.
  • J
    Justin MaysAug 27, 2025
    What to do if my Gravely ZT XL 48 Lawn Mower is not tracking straight?
    • K
      kristopher15Aug 27, 2025
      If your Gravely Lawn Mower isn't tracking straight, start by checking the tire pressure. Also, the steering levers may need adjustment, so adjust the steering levers.
  • B
    Bonnie CardenasAug 31, 2025
    Why is my Gravely Lawn Mower overheating?
    • J
      jameswilliamAug 31, 2025
      If your Gravely Lawn Mower engine is overheating, it might be due to a low engine oil level, so add engine oil. Another cause could be plugged cooling fins, so clean the engine.
  • S
    Steven LutzSep 4, 2025
    What to do if PTO malfunctions in Gravely ZT XL 48?
    • C
      Cody ThompsonSep 4, 2025
      If the PTO is malfunctioning on your Gravely Lawn Mower, make sure the operator presence switch is activated by sitting on the operator seat.
  • T
    tzimmermanSep 7, 2025
    What to do if Gravely ZT XL 48 Lawn Mower moves with engine off and parking brake engaged?
    • S
      Sabrina MartinezSep 7, 2025
      If your Gravely Lawn Mower moves with the engine off and the parking brake engaged, the parking brake likely needs adjustment.

Summary

Safety Information

Safety Alert Symbol

Explains the safety alert symbol and its meaning.

Signal Words

Explains the meaning of signal words like Danger, Warning, Caution, Notice.

Safety Decals

Safety Instructions and Operating Practices

Preparation Before Operating

Details pre-operation checks like inspecting decals, shields, safety interlocks, and clearing the area.

Operating Guidelines and Specific Hazards

Operating Procedures

Covers safe operation practices, controls, hazards, and general operating rules.

Children Specific Precautions

Highlights specific safety precautions related to children around the operating area.

Slope Operation

Discusses hazards and precautions when operating on slopes.

Fire, Fuel, Hauling, and Towing Safety

Unit Assembly Procedures

Controls and Features Overview

Power-Take-Off (PTO) Knob

Unit Operation Procedures

Parking Brake Lever

Safety Interlock System

Monitors unit features for operator safety.

Steering Levers

Control the direction and speed of the unit.

Emergency Stopping

Steps to quickly stop the machine in an emergency situation.

Before Operating Unit

Pre-operation checks including fuel, oil, air cleaner, and safety interlocks.

Start the Engine

Step-by-step guide to starting the engine, including choke and throttle settings.

Operate Unit

Instructions for releasing brake, setting throttle, and engaging PTO.

Maintenance and Service

Stop the Engine

Steps to safely stop the engine and park the machine.

Maintenance Schedule

Outlines the maintenance tasks required at different service intervals.

Check Safety Interlock System

Tests the safety interlock system to ensure proper operation.

Check Parking Brake

Verifies the proper function of the parking brake.

Check Engine Oil

Instructions for checking and maintaining the engine oil level.

Check Tire Pressure

Check Mower Blades

Check Battery

Check Mower Belts

Hydraulic Oil Level

Steps to check the hydraulic oil level in the expansion tanks.

Add Hydraulic Oil

Instructions on how to add hydraulic oil if the level is low.

Change Hydraulic Oil and Filter

Purge Hydraulic System

Adjustments and Settings

Adjust Steering Levers

Troubleshooting Common Issues

Engine Not Starting

Lists causes and corrections for the engine failing to start.

Rough Engine Operation

Engine Overheating

Unit Not Driving

PTO Malfunctions

Tracking Issues

Poor Cutting Quality

Storage and Start-of-Season Preparation

Product Specifications

Warranty Information

Exclusions and Limitations

Gravely ZT XL 48 Specifications

General IconGeneral
Engine BrandKawasaki
Engine ModelFR691V
Horsepower23 HP
Engine Displacement726cc
Cutting Width48 inches
Transmission TypeHydrostatic
TransmissionHydro-Gear ZT-2800
Deck MaterialSteel
Deck TypeFabricated
Max Forward Speed8 mph
Max Reverse Speed4 mph
Deck Thickness10 gauge
Turning Radius0 in

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