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Do you have a question about the Big Dog X Series and is the answer not in the manual?

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Barry Kerper
May 21, 2025

What oil does the drive pump take?

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Summary of Contents for Excel Big Dog X Series

  • Page 2: General Information

    GENERAL INFORMATION This manual applies to the following BigDog™ Mowers: unless otherwise stated. Photographs and illustrations used were current at the time of BigDog™ Mowers X Series printing, but subsequent production changes may cause your machine to vary slightly in detail. BigDog™ Mowers reserves To the new owner the right to redesign and change the machine as deemed neces- The purpose of this manual is to assist owners and operators...
  • Page 3 WARNING: The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. NOTICE OF REQUIREMENT OF SPARK ARRESTER MUFFLER This equipment may create sparks that can start fires around dry vegetation. California Public Resources Code Sec- tion 4442.6 provides that it is unlawful to use or operate an internal combustion engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester maintained in effective working order.
  • Page 4 BigDog™ MOWERS X SERIES TWO YEAR (1200 HOURS) LIMITED WARRANTY FOUR YEAR (500 HOURS) LIMITED WARRANTY 90 DAYS LIMITED WARRANTY IN RENTAL APPLICATIONS OPTIONAL WARRANTY POLICIES He must promptly notify BigDog™ Mowers, or an The purchaser must choose one of the following warranty poli- authorized dealer, in writing of the defect.
  • Page 5 No employee of fitness for a particular purpose is limited to the duration of this Excel Industries, Inc, or any other party is authorized to make limited warranty. Some states do not allow limitations on how any warranty in addition to those made in this agreement.
  • Page 6: Safety Precautions

    SAFETY PRECAUTIONS This safety alert symbol is used to call attention to a message completely and thoroughly before attempting to set-up, intended to provide a reasonable degree of PERSONAL operate, adjust, or service this machine. SAFETY for operators and other persons during the normal The decals are designed to give the operator brief information operation and servicing of this equipment.
  • Page 7 Part Number 600899 Part Number 601837 If you lose steering control while operating the machine, place the steering control levers in the park brake position immediately. Inspect the machine and involve your dealer to resolve the problem before continuing to operate. If pump belt fails, steering control will be lost.
  • Page 8 Part Number 602233 602233 Fast Slow Choke Mower blade engage/disengage switch Ignition switch - insert key If warning light comes on, check engine oil Engine start position Before starting the engine: Read Owner’s Manual Disengage mower blades Place control levers in park brake position Wear ear protection, eye protection and safety shoes when operating this equipment.
  • Page 9 Read Owner’s Manual and decals before attempting to operate this machine. WARNING: This structure’s protective capability may be impaired by structural damage, overturn, or alteration. If any of these conditions occur, this structure must be replaced. WARNING: Roll over! • Avoid crushing, use seat belt.
  • Page 10 Part Number 601981 WARNING: Read Owner’s Manual and decals before attempting to operate this machine. WARNING: Roll over! • Mow a safe distance (minimum of 10 feet) away from drop-offs, retaining walls, drainage ditches, embankments, water, and other types of hazards to avoid a wheel dropping over the edge or to avoid the ground from breaking away.
  • Page 11: International Symbols

    INTERNATIONAL SYMBOLS As a guide to the operation of your mower, various international symbols have been used on instruments and controls. These symbols are depicted and described below. Hours Recorded Neutral Battery Engine Water Diesel Fuel Power Take-off Temperature (ON) Air Filter Glow Power Take-off...
  • Page 12: Slope Guide

    SLOPE GUIDE Use this diagram when determining the degree of slope to be mowed. E (15 Slope Guide Lines D (10 C (5 Line A 1. Hold this sheet of paper in front of you. Make sure that Line A is horizontal. 2.
  • Page 13 602471_1009...
  • Page 14: Safe Operating Practices

    OPERATION Safe Operating Practices Always wear long pants, safety glasses, ear protection and safety shoes when operating this machine. Some of the following safety instructions are from ANSI Always be aware of what is behind the machine before Standard B-71.4-2004 while others are specific to the BigDog™ backing up.
  • Page 15: Using A Ramp

    in either direction could result in a reaction of the ditches, embankments and water to avoid machine roll- machine that can cause serious injury. over and serious injury or death. Clean flammable material from machine. Prevent Do not mow on wet grass. Slippery conditions reduce fires by keeping engine compartment, top of deck, traction which could cause sliding and loss of control.
  • Page 16: Control Panel

    4. Buildings 5. Rocks These are just a few examples of situations when caution must be used when operating on a slope. There are many other possibilities too numerous to mention. Just remem- ber to always exercise extreme caution when operating on any slope.
  • Page 17: Safety Start Interlock System

    WARNING: The parking brake may not hold the machine if parked on a slope. Block or chock the machine when parked on a slope. B. Deck lift pedal (Figure 3-4) — the deck lift pedal is used to raise or lower the deck. Push on the pedal to raise the deck and then place the deck height locking pin into the Hour meter desired cutting height hole.
  • Page 18: Engine Starting

    Engine starting clockwise one-half to one revolution. The valve stems on each hydraulic pump are located near the top and are identified as a The mower’s safety start interlock system is also designed to hex stud. The valve is located per Figure 3-6. protect the operator and others from accidental injury due to The steering control levers must be placed in the neutral unintentional engine starting.
  • Page 19 provided with the equipment. Do not remove the ROPS and seat WARNING: Do not operate the mower with the belt. ROPS when used with seat belt is effective in reducing ROPS folded (lowered position) as a standard operat- injuries during unit overturn accidents. Overturning the unit ing mode.
  • Page 20: Driving The Mower

    IMPORTANT: Do not attempt to weld or straighten the lever and finish the turn. (Figure 3-10) IMPORTANT: Rapid movement of control levers is not rec- ROPS. ommended as damage to the hydraulic system components may WARNING: If the ROPS or cab is removed or occur.
  • Page 21: Mower Deck Operation

    FRONT OF MOWER FACES THIS DIRECTION FORWARD TRAVEL ZERO RADIUS FORWARD TRAVEL REVERSE TRAVEL REVERSE TRAVEL TURN RIGHT TURN RIGHT TURN N= NEUTRAL POSITION Direction of arrows indicate direction of mower movement Figure 3-9 blades is listed in this manual’s maintenance section. In mow at a high cutting height;...
  • Page 22: Anti-Scalp Wheels

    Three point turn Discharge chute Step 1 Figure 3-11 EXAMPLE: When the height adjusting stop is placed in the 1” (2.54 cm) hole, with the 1/4” (.64 cm) plate facing to the front of the unit, the cutting height is at 1”. When the height adjusting stop is placed in the 1”...
  • Page 23 are in the lower or middle axle mount holes. When the front wheels are in the upper axle mount hole, the rear wheels should be in the upper axle mount hole as well. NOTE: When the anti-scalp wheels are installed, the mini- Anti-scalp wheel mum cutting height is 1”...
  • Page 24: Safe Servicing Practices

    MAINTENANCE & ADJUSTMENTS Safe Servicing Practices while the engine is running or deck clutch is engaged. Repairs or maintenance requiring engine power should be This product is capable of amputating hands and feet and performed by trained maintenance personnel only. throwing objects.
  • Page 25: Torque Values

    using jack stands or blocks, in the full up position and scrape the WARNING: Avoid skin and clothing contact with build-up from underneath. battery acid. Some repairs require the assistance of a trained service Always wear eye protection when checking the bat- mechanic and should not be attempted by unskilled personnel.
  • Page 26: Fuel System

    Check oil level in hydraulic system after every 50 hours of • Store fuel in an approved container and keep it out operation or weekly, whichever occurs first. Check more often if of the reach of children. Never buy more than a 30 system appears to be leaking or otherwise malfunctioning.
  • Page 27: Engine Oil And Filter

    Engine oil and filter 6. After oil is drained, close the valve by twisting it clockwise. 7. Once the valve is closed, carefully remove the oil WARNING: If the engine has been running and is up drain hose and clean up any spilled oil. to operating temperature, allow the engine to cool IMPORTANT: All oil drips or spills must be cleaned before changing the oil.
  • Page 28: General Engine Maintenance

    It is important to note that whenever an air filter element is cleaned by any method, the person or company performing the cleaning assumes responsibility for the integrity of the filter from then on. The warranty for air filters expires upon cleaning or servicing in any manner because the condition of the filter after servicing is completely out of their control.
  • Page 29: Mower Blade Removal

    efficiency and well groomed turf. Keep them sharp, a dull blade will tear rather than cut the grass, leaving a brown ragged top on the grass within a few hours. A dull blade also requires more power from the engine. Replace any blade which is bent, cracked or broken.
  • Page 30 Upper control lever Forward/rearward Cap screws travel lever Fig. 4-10 The steering control levers should be adjusted so that they align with each other when in the neutral position. Lower control lever Fig. 4-11 602471_1009...
  • Page 31 BigDog™ Mowers X Series Maintenance Schedule Refer to Fig. 4-12 & Fig. 4-13 WEEKLY MONTHLY ANNUALLY SERVICE AT OR 40 OR 100 OR 500 INTERVALS INDICATED HOURS HOURS HOURS Verify safety start interlock system Prior to each use Visually inspect unit for loose hardware and/or damaged parts Prior to each use Visually inspect tires...
  • Page 32 BigDog™ Mowers X Series Maintenance Locator Chart 1. Engine Oil Fill & Dipstick 2. Fuel Filter 3. Engine Air Cleaner 4a. Engine Oil Drain Valve (Briggs & Stratton) 4b. Engine Oil Drain Valve (Kohler & Kawasaki) 5. Battery 6. Fuel Tanks 7.
  • Page 33: Maintenance Locator Chart

    BigDog™ Mowers X Series Maintenance Locator Chart 1. Deck Pusher Arm Zerks (2) 2. Deck Belt 3. Spindle Housing Zerk (3) 4. Blades Fig. 4-13 4-10 602471_1009...
  • Page 34: Troubleshooting

    TROUBLESHOOTING The majority of operating problems that occur with a system can be traced to improper adjustments or delayed service. A consistently applied preventative maintenance program, as outlined in the maintenance section of this manual, will prevent many problems. The following chart is designed to help you locate a problem by suggesting probable causes and the recommended solutions.
  • Page 35: Product Literature

    6. Clean exterior surface of engine. Spread a light film of oil SUGGESTED SYMPTOMS PROBABLE CAUSES over any exposed metal surfaces of engine that are REMEDIES subject to corrosion. The blade(s) are not sharp Sharpen the blades 7. Check oil filler cap and fuel tank cap to make certain they are securely in place.
  • Page 36 INDEX PAGE PAGE Belts ........4-5 New season preparation .

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