Gravely 915174 User Manual

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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:

D
Daniel GriffithAug 12, 2025
What to do if my Gravely 915174 Lawn Mower engine does not start?
- R
  Rebecca EdwardsAug 13, 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.
D
Dr. Tiffany Brown MDAug 16, 2025
How to improve cutting quality of my Gravely 915174?
- T
  timothyvaughnAug 16, 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
Robin HollandAug 20, 2025
What to do if my Gravely 915174 Lawn Mower does not drive?
- J
  jason87Aug 20, 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.
D
David SparksAug 25, 2025
Why is my Gravely 915174 engine running rough?
- B
  brad65Aug 25, 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.
A
Anthony WilliamsAug 27, 2025
What to do if PTO malfunctions on my Gravely 915174 Lawn Mower?
- J
  Jeffrey HenryAug 27, 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.
P
Philip JohnsonAug 31, 2025
Why does my Gravely 915174 Lawn Mower engine overheat?
- M
  Meghan McclainAug 31, 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.
T
taylorjessicaSep 4, 2025
Why does my Gravely Lawn Mower move with engine off and parking brake engaged?
- J
  Jessica ScottSep 4, 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.
H
Heather DonovanSep 7, 2025
What to do if my Gravely 915174 Lawn Mower does not track straight?
- R
  Robert CuevasSep 7, 2025
  If your Gravely Lawn Mower does not track straight, begin by checking the tire pressure and ensuring it matches the recommended specifications. If the issue persists, the steering levers may need adjustment. If the problem continues, the transaxles and/or linkages may require adjustment, which necessitates contacting your Gravely dealer.

Gravely 915174 Specifications

General

Fuel Capacity	3.5 gallons
Transmission	Hydrostatic
Cutting Width	52 inches
Deck Type	Fabricated
Cutting Height	1.5 - 4.5 inches

Summary

WELCOME AND PRODUCT INFORMATION

PRODUCT REGISTRATION AND MANUALS

Register your unit and access operator and engine manuals for safety and operation.

SAFETY GUIDELINES

GENERAL SAFETY RULES AND SYMBOLS

Explains safety alert symbols, signal words, and general safety rules.

OPERATOR TRAINING AND PERSONAL SAFETY

Emphasizes operator training, age limits, child safety, and personal protective equipment.

OPERATING PROCEDURES

PRE-OPERATION CHECKS AND SAFE OPERATION

Pre-operation checks, safe operation practices, operating conditions, and slope safety.

STARTING, OPERATING, MOWING, AND MOVEMENT

Engine starting, unit operation, mowing techniques, and manual unit movement procedures.

CONTROLS AND FEATURES

UNIT CONTROL LAYOUT AND DETAILS

Identifies unit controls, features, and explains key operator controls.

SAFETY SYSTEMS AND OPERATIONAL COMPONENTS

Details on parking brake, steering, safety interlocks, transaxle bypass, and anti-scalp rollers.

MAINTENANCE AND SERVICE

MAINTENANCE SCHEDULE, PARTS, AND CHECKS

Maintenance schedule, service parts, and basic unit checks like tires and oil.

COMPONENT MAINTENANCE PROCEDURES

Procedures for mower blade, battery, drive belts, and hydraulic system maintenance.

ADJUSTMENTS AND SETUP

OPERATOR COMFORT AND STEERING ADJUSTMENTS

Adjusting seat, steering lever height, reach, and unit tracking for optimal performance.

MOWER DECK AND PARKING BRAKE ADJUSTMENTS

Adjusting parking brake, mower deck leveling, and blade pitch for proper function.

TROUBLESHOOTING AND STORAGE

TROUBLESHOOTING COMMON PROBLEMS

Identifies common operational issues and provides solutions for engine, PTO, and tracking problems.

STORAGE PROCEDURES AND PREPARATION

Guidelines for short-term, long-term storage, and start-of-season preparation.

WARRANTY AND SUPPORT

WARRANTY COVERAGE AND CUSTOMER RESPONSIBILITIES

Details warranty coverage, exceptions, customer duties, and how to find authorized service.

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