McCulloch MOWCART 66 User Manual (English)

Questions and Answers:

J
jeffrey30Aug 19, 2025
Why McCulloch MOWCART 66 will not start?
- J
  Julia HernandezAug 19, 2025
  Your McCulloch Lawn Mower might not start due to several reasons: it could be out of fuel, so you should fill the fuel tank. It may also be due to a bad spark plug, which requires replacement, or a dirty air filter, which needs cleaning or replacement. Water in the fuel can also be a culprit; in that case, empty the fuel tank and carburetor, refill with fresh gasoline, and replace the fuel filter. Loose or damaged wiring can also prevent starting, so check all wiring. If the engine valves are out of adjustment, it's best to contact a qualified service center.
Z
zstricklandAug 25, 2025
How to fix hard to start McCulloch Lawn Mower?
- J
  Jonathan ChristianAug 25, 2025
  If your McCulloch Lawn Mower is hard to start, there are several possible causes. The air filter might be dirty, so clean or replace it. A bad spark plug can also make it difficult to start, so replace the spark plug. If the battery is weak or dead, recharge or replace it. Stale or dirty fuel can also cause this issue, so empty the fuel tank and refill it with fresh, clean gasoline. Check all wiring for looseness or damage. If the engine valves are out of adjustment, contact a qualified service center.
U
udavisAug 26, 2025
What to do if McCulloch MOWCART 66 engine will not turn over?
- R
  Ryan BellAug 26, 2025
  If the engine of your McCulloch Lawn Mower won't turn over, make sure the clutch/brake pedal is depressed. Also, ensure the deck clutch is disengaged. A weak or dead battery can prevent the engine from turning over, so recharge or replace the battery. Check for a blown fuse and replace it if necessary. Clean any corrosion from the battery terminals. Inspect all wiring for looseness or damage. Check and replace the ignition switch if it's faulty. Also, check and replace the solenoid or starter if they are faulty. If you suspect a faulty operator presence switch, contact a qualified service center.
S
Stephen ChandlerAug 28, 2025
What to do if McCulloch Lawn Mower engine clicks but will not start?
- B
  Brian HowardAug 28, 2025
  If your McCulloch Lawn Mower engine clicks but doesn't start, the battery may be weak or dead, requiring a recharge or replacement. Corroded battery terminals can also cause this issue, so clean them. Check all wiring for looseness or damage. A faulty solenoid or starter could also be the problem, so check and replace them if necessary.
Q
qwalkerAug 30, 2025
Why McCulloch Lawn Mower has excessive vibration?
- A
  Anthony WilsonAug 31, 2025
  Excessive vibration in your McCulloch Lawn Mower can be due to a worn, bent, or loose blade, which should be replaced. The blade mandrel might be bent, so tighten the blade bolt. If there are loose or damaged parts, contact a qualified service center. If you find any loose parts, tighten them, and replace any damaged parts.
T
Teresa MooreSep 2, 2025
Why McCulloch MOWCART 66 has poor cut - uneven cutting?
- S
  Sherry BryantSep 2, 2025
  An uneven cut with your McCulloch Lawn Mower can result from a worn, bent, or loose blade, which needs replacement. The mower deck may not be level, so tighten the blade bolt. A buildup of grass, leaves, and trash under the mower can also cause this issue, so level the mower deck. Additionally, a bent blade mandrel can contribute to an uneven cut, so clean the underside of the mower housing. If the mower deck vent is clogged due to buildup around the mandrel, contact a qualified service center and clean around the mandrels to open the vent holes.
M
michael94Sep 4, 2025
Why McCulloch Lawn Mower has poor grass discharge?
- A
  Andrew HerreraSep 4, 2025
  Poor grass discharge from your McCulloch Lawn Mower might be because your travel speed is too fast, so shift to a slower speed. Wet grass can also cause this, so allow the grass to dry before mowing. If the mower deck isn't level, level it. Check the tires for proper PSI if the tire air pressure is low or uneven. A worn, bent, or loose blade can also cause poor discharge, so replace or sharpen the blade. Clean underside of mower housing. If the mower drive belt is worn, replace it. If the blade is improperly installed, reinstall it with the sharp edge down. Also, improper blade used should be replaced. Clogged mower deck vent holes from buildup of grass, leaves, and trash around mandrels, so clean around mandrels to open vent holes.
T
Tiffany RodgersSep 6, 2025
What to do if McCulloch MOWCART 66 blade will not rotate?
- M
  Megan BallSep 6, 2025
  If the mower blade on your McCulloch Lawn Mower won't rotate, check for an obstruction in the clutch mechanism and remove it. A worn or damaged mower drive belt can also cause this, so replace the mower drive belt. If the idler pulley is frozen, replace it. If the blade mandrel is frozen, contact a qualified service center.
M
Melinda BrewerSep 8, 2025
Why McCulloch MOWCART 66 Lawn Mower battery will not charge?
- V
  Victoria PageSep 8, 2025
  If the battery of your McCulloch Lawn Mower won't charge, it could be due to bad battery cells, which means you'll need to replace the battery. Poor cable connections can also prevent charging, so check and clean all connections. A faulty alternator might also be the cause, requiring you to replace the alternator.
A
Alexander AllenSep 12, 2025
What causes loss of drive in McCulloch Lawn Mower?
- K
  kramertimothySep 12, 2025
  A loss of drive in your McCulloch Lawn Mower may occur if the freewheel control is in the “DISENGAGED” position; place it in the “ENGAGED” position. Also, check for a missing axle key and install it at the rear wheel.

McCulloch MOWCART 66 Specifications

General

Cutting Width	66 cm
Cutting Height Range	38-102 mm
Transmission Type	Manual
Engine Manufacturer	Briggs & Stratton
Collector Volume	150 liters

Summary

SAFETY RULES

GENERAL OPERATION

Instructions for safe and proper operation of the riding mower.

SLOPE OPERATION

Guidelines for safe operation on slopes to prevent tip-over accidents.

CHILDREN

Safety precautions regarding children around the riding mower.

TOWING

Guidelines and safety precautions for towing attachments.

SERVICE

Safety precautions for handling gasoline and general service.

PRODUCT SPECIFICATIONS

CUSTOMER RESPONSIBILITIES

UNASSEMBLED PARTS

ASSEMBLY

TOOLS REQUIRED FOR ASSEMBLY

List of tools needed for assembling the riding mower.

TO REMOVE RIDING MOWER FROM CARTON

Instructions on how to unpack the riding mower from its shipping carton.

HOW TO SET UP YOUR RIDING MOWER

Step-by-step guide for setting up the riding mower, including steering and seat installation.

CHECK TIRE PRESSURE

Instructions for checking and adjusting tire pressure for optimal performance.

CHECK DECK LEVELNESS

Guidance on ensuring the mower deck is properly leveled for best cutting results.

CHECK FOR PROPER POSITON OF MOWER DRIVE BELT

Verification of the correct routing of the mower drive belt.

CHECK BRAKE SYSTEM

Procedure to check if the brake system is operating correctly.

CHECKLIST

Pre-operation checklist to ensure the riding mower is ready and safe to use.

OPERATION

SYMBOLS EXPLANATION

Explanation of various symbols used on the riding mower and in its literature.

SAFETY ALERT SYMBOL EXPLANATION

Explanation of danger, warning, and caution symbols and their meanings.

KNOW YOUR RIDING MOWER

Familiarization with the location and function of riding mower controls and adjustments.

HOW TO USE YOUR RIDING MOWER

Detailed instructions on operating the riding mower, including setting the parking brake.

TO MOVE FORWARD AND BACKWARD

Guidance on controlling the direction and speed of the riding mower.

TO ADJUST MOWER CUTTING HEIGHT

Instructions for adjusting the mower deck to the desired cutting height.

TO OPERATE MOWER

Information on operating the mower, including operator presence sensing.

TO OPERATE ON HILLS

Safety warnings and procedures for operating the mower on slopes.

TO TRANSPORT

Instructions for preparing the mower for pushing or towing.

REVERSE OPERATION SYSTEM (ROS)

Explanation of the Reverse Operation System and its usage.

BEFORE STARTING THE ENGINE

Steps to take before starting the engine, including checking the oil level.

ADD GASOLINE

Safe procedures for adding gasoline to the fuel tank.

TO START ENGINE

Step-by-step instructions for starting the riding mower engine.

MOWING TIPS

Practical advice for achieving the best mowing performance and quality.

MAINTENANCE

MAINTENANCE SCHEDULE

A schedule detailing maintenance tasks and their frequency.

GENERAL RECOMMENDATIONS

General advice and recommendations for maintaining the riding mower.

BEFORE EACH USE

A checklist of essential checks to perform before each use of the mower.

RIDING MOWER

Safety rules and specific maintenance points for the riding mower itself.

BRAKE OPERATION

Details on checking and adjusting the brake operation for safe stopping.

TIRES

Information on maintaining proper tire pressure and avoiding tire damage.

AXLE AND SPINDLES

Lubrication guidelines for front wheel axles and spindles.

OPERATOR PRESENCE SYSTEM AND REVERSE OPERATION SYSTEM (ROS)

Ensuring operator presence and ROS systems are functioning correctly.

BLADE CARE

Guidelines for blade maintenance, replacement, and installation.

BATTERY

Information on battery care, charging, and maintenance-free operation.

TRANSAXLE COOLING

Ensuring proper cooling for the transaxle by keeping it clean.

V-BELT

Instructions for checking and replacing the V-belt.

ENGINE LUBRICATION

Guidance on selecting and checking engine oil viscosity and levels.

TO CHANGE ENGINE OIL

Step-by-step instructions for draining and refilling engine oil.

AIR FILTER

Procedure for cleaning or replacing the air filter for optimal engine performance.

CLEAN AIR SCREEN

Instructions for cleaning the air screen to prevent overheating.

CLEAN AIR INTAKE/COOLING AREAS

Ensuring proper engine cooling by cleaning external surfaces and fins.

MUFFLER

Inspection and replacement of the muffler and spark arrester.

SPARK PLUG(S)

Guidance on replacing spark plugs for seasonal maintenance.

CLEANING

General cleaning procedures for the riding mower and its components.

SERVICE AND ADJUSTMENTS

WARNING: TO AVOID SERIOUS INJURY, BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS

Crucial safety precautions to take before performing any service or adjustments on the mower.

RIDING MOWER

General safety points for servicing the riding mower.

TO REMOVE MOWER

Step-by-step instructions for removing the mower deck from the tractor.

TO INSTALL MOWER

Instructions for installing the mower deck, which are reverse of removal.

TO LEVEL MOWER HOUSING

Detailed instructions for adjusting the mower deck levelness.

SIDE-TO-SIDE ADJUSTMENT

Procedure for adjusting the mower deck for side-to-side levelness.

FRONT-TO-BACK ADJUSTMENT

Procedure for adjusting the mower deck for front-to-back levelness.

TO REPLACE MOWER BLADE DRIVE BELT

Steps for removing and installing the mower drive belt.

TO ADJUST BRAKE

Instructions for adjusting the brake system if stopping distance is excessive.

TO ADJUST STEERING WHEEL ALIGNMENT

Procedure for adjusting steering wheel alignment if it's not horizontal.

TO REMOVE WHEEL FOR REPAIRS

Instructions for removing front and rear wheels for repair.

TO START ENGINE WITH A WEAK BATTERY

Guidance on starting the engine when the battery is weak.

REPLACING BATTERY

Safety precautions and steps for replacing the mower battery.

INTERLOCKS AND RELAYS

Checking wiring for proper function of interlocks and relays.

TO REPLACE FUSE

Instructions for replacing the mower's fuse.

ENGINE

Information on engine speed, carburetor, and governor adjustments.

STORAGE

MOWER

Instructions for preparing and storing the riding mower.

BATTERY

Guidance on fully charging the battery for storage.

ENGINE FUEL SYSTEM

Preventing fuel system issues during storage, including gum deposits.

ENGINE OIL

Instructions for draining and replacing engine oil for storage.

CYLINDER(S)

Procedure for oiling cylinders before storing the mower.

OTHER

Additional tips for storing the riding mower and related items.

TROUBLESHOOTING POINTS

Will not start

Common causes and corrections for the engine not starting.

Hard to start

Causes and solutions for the engine being difficult to start.

Engine will not turn over

Troubleshooting steps for when the engine fails to turn over.

Engine clicks but will not start

Diagnosing issues when the engine only clicks and doesn't start.

Loss of power

Identifying and resolving causes for a loss of engine power.

Excessive vibration

Troubleshooting causes of excessive vibration during operation.

Engine continues to run when operator leaves seat with attachment engaged

Resolving the issue of the engine continuing to run when the operator leaves the seat.

Poor cut - uneven cutting

Diagnosing and fixing causes of uneven or poor cutting performance.

Mower blade will not rotate

Troubleshooting reasons why the mower blade is not rotating.

Poor grass discharge

Identifying and correcting issues related to poor grass discharge.

Battery will not charge

Troubleshooting causes for the battery not charging.

Loss of drive

Diagnosing and resolving issues with the mower's drive system.

Engine dies when tractor is shifted into reverse

Troubleshooting why the engine dies when shifting into reverse.

Related product manuals

McCulloch MOWCART 66 User Manual

Table of Contents

Questions and Answers:

McCulloch MOWCART 66 Specifications

Summary

SAFETY RULES

GENERAL OPERATION

SLOPE OPERATION

CHILDREN

TOWING

SERVICE

PRODUCT SPECIFICATIONS

CUSTOMER RESPONSIBILITIES

UNASSEMBLED PARTS

ASSEMBLY

TOOLS REQUIRED FOR ASSEMBLY

TO REMOVE RIDING MOWER FROM CARTON

HOW TO SET UP YOUR RIDING MOWER

CHECK TIRE PRESSURE

CHECK DECK LEVELNESS

CHECK FOR PROPER POSITON OF MOWER DRIVE BELT

CHECK BRAKE SYSTEM

CHECKLIST

OPERATION

SYMBOLS EXPLANATION

SAFETY ALERT SYMBOL EXPLANATION

KNOW YOUR RIDING MOWER

HOW TO USE YOUR RIDING MOWER

TO MOVE FORWARD AND BACKWARD

TO ADJUST MOWER CUTTING HEIGHT

TO OPERATE MOWER

TO OPERATE ON HILLS

TO TRANSPORT

REVERSE OPERATION SYSTEM (ROS)

BEFORE STARTING THE ENGINE

ADD GASOLINE

TO START ENGINE

MOWING TIPS

MAINTENANCE

MAINTENANCE SCHEDULE

GENERAL RECOMMENDATIONS

BEFORE EACH USE

RIDING MOWER

BRAKE OPERATION

TIRES

AXLE AND SPINDLES

OPERATOR PRESENCE SYSTEM AND REVERSE OPERATION SYSTEM (ROS)

BLADE CARE

BATTERY

TRANSAXLE COOLING

V-BELT

ENGINE LUBRICATION

TO CHANGE ENGINE OIL

AIR FILTER

CLEAN AIR SCREEN

CLEAN AIR INTAKE/COOLING AREAS

MUFFLER

SPARK PLUG(S)

CLEANING

SERVICE AND ADJUSTMENTS

WARNING: TO AVOID SERIOUS INJURY, BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS

RIDING MOWER

TO REMOVE MOWER

TO INSTALL MOWER

TO LEVEL MOWER HOUSING

SIDE-TO-SIDE ADJUSTMENT

FRONT-TO-BACK ADJUSTMENT

TO REPLACE MOWER BLADE DRIVE BELT

TO ADJUST BRAKE

TO ADJUST STEERING WHEEL ALIGNMENT

TO REMOVE WHEEL FOR REPAIRS

TO START ENGINE WITH A WEAK BATTERY

REPLACING BATTERY

INTERLOCKS AND RELAYS

TO REPLACE FUSE

ENGINE

STORAGE

MOWER

BATTERY

ENGINE FUEL SYSTEM