Cub Cadet G 1236 Operator's And Service Manual

Walk-behind commercial rotary mowers
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G1236
Walk-Behind Commercial
Rotary Mowers
Professional Turf Equipment
ES
OPERATOR'S AND SERVICE MANUAL

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Summary of Contents for Cub Cadet G 1236

  • Page 1 G1236 Walk-Behind Commercial Rotary Mowers Professional Turf Equipment OPERATOR’S AND SERVICE MANUAL...
  • Page 2: Table Of Contents

    Foreword Safety Instructions Slope Guide Safety Labels Product Specification Assembly Operation Maintenance Service and Adjustments Off-Season Storage Accessories and Attachments Troubleshooting Model Number... Serial Number... Date of Purchase... Record the model number, serial number and date of purchase above. TABLE OF CONTENTS MODEL NUMBER...
  • Page 3: Foreword

    The Cub Cadet Commercial, Walk-Behind, Rotary Mowers have been developed for use by professional landscapers, commercial lawn service companies, professional turf managers and golf course superintendents. The machines incorporate many safety features that should be studied by all operators and maintenance personnel before use.
  • Page 4: Safety Instructions

    WARNING: This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury.
  • Page 5: Maintenance And Storage

    blades are in good condition and the blade bolts are tight before restarting the engine. 15. Do not mow excessively steep slopes (No more than 15 degrees or a 26.8% grade). Mow across the slope. WARNING: Do not mow up and down the slope.
  • Page 6 FIRST TIME OPERATORS • Start off in a flat, open, area. • Keep bystanders away. • Set the throttle to low speed. • Practice maneuvering (forward, turn left, turn right, reverse), without the mower deck engaged.
  • Page 7: Slope Guide

    SLOPE GUIDE...
  • Page 8: Safety Labels

    SAFETY LABELS WARNING OPEN BELT DRIVE STOP ENGINE BEFORE REACHING UNDERNEATH Part Number: 777I22931 Part Number: 01001035 - TURN OFF ENGINE AND ALLOW TO COOL BEFORE REFUELING. WARNING - DO NOT SMOKE NEAR FUEL. Part Number: 01001036 Part Number: 777I22930 Part Number: 777S30116 WARNING SHIELD MISSING...
  • Page 9 Part Number: 01006668 Part Number: 01006132 Part Number: 01002166 Part Number: 777D12837 Part Number: 777S30503 Part Number: 777I22929...
  • Page 10: Product Specification

    GENERAL INFO. Controls: Engine ignition; throttle; choke; left and right operator presence levers; left and right steering/brakes; blade clutch; transmission shift Parking: Transmission in 1st, neutral latches released, rear wheels chocked in front Frame: 7 gauge steel Front Caster Wheels: 9 x 4.0-5 semi-pneumatic Drive Wheels: 13 x 6.50-6 pneumatic, 10-12 psi...
  • Page 11: Assembly

    This unit is shipped with oil in the engine. IMPORTANT: After assembly, see OPERATION section of this manual for fuel and engine oil details. NOTE: Reference to right and left hand side of the mower is observed from the operating position. This pedestrian controlled wide area mower has been completely assembled at the factory.
  • Page 12: Operation

    Save this manual for future reference. The operation of any lawn mower can result in foreign objects being thrown into the eyes, which can damage your eye severely. Always wear safety glasses, while operating the mower or while performing any adjustments or repairs on it.
  • Page 13 squeezed and its neutral latch lever pushed forward and engaged in the neutral lock position, the steering/brake lever is held in a position where the idler pulley is not applying pressure to the traction drive belt and the brake is not engaged. Figure 3 IMPORTANT: The neutral latch levers must be engaged in the neutral lock position before starting...
  • Page 14: Initial Adjustments

    INITIAL ADJUSTMENTS 1. Disconnect the spark plug wire. 2. Check that all nuts, bolts and screws are tight. 3. Check the tension of the deck drive belts: a. Remove the deck cover shield and engage the blade clutch. b. Make sure the belts clear the belt guides by 1/8"...
  • Page 15 as indicated below in Figure 8. Figure 8 b. Grasp starter rope handle and pull slowly until rope pulls slightly harder. Let rope rewind slowly. Then pull rope with a rapid, full arm stroke. Let rope return slowly. If engine fails to start after three pulls, repeat instructions (try setting throttle at fast setting).
  • Page 16: Using The Mower

    13. Readjust the steering control rods and the brake rods. They may require frequent adjustment until the belts and brake bands have properly seated. These adjustments are described in items 6 and 7 of the Initial Adjustment section. 14. After the first full day of mowing, all nuts, bolt and screws should be rechecked for proper tightness and the belts should be rechecked for proper tension.
  • Page 17: Maintenance

    Always observe safety rules when performing any type of maintenance on the mower. • The warranty on this lawn mower does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain the equipment as instructed in this manual.
  • Page 18: Changing Engine Oil

    CHANGING ENGINE OIL 1. Place a container underneath the mower on the right hand side. 2. Remove oil drain plug, and replace when oil stops draining. (See Figure 12) Drain Plug Figure 12 3. Refill oil through the fill tube to the level indicated as “full”...
  • Page 19 above and below the spindle. Figure 17 5. Remove the long (9-1/2”) blade bolt, the flat washer, the blade and the blade spacers. 6. To replace the blade, reverse the above procedure. Be careful to replace the blade spacers correctly above and below the spindle. This is not a timed blade system and since blade overlap is provided, orientation is not important.
  • Page 20 6. Replace the long blade drive belt on the engine pulley. 3/16” deflection long blade drive belt Figure 20 CHANGING EITHER TRACTION DRIVE BELT: 1. Remove the hex screws which hold the belt guards in place. Remove the belt guards. Figure 21 2.
  • Page 21: Service And Adjustments

    SERVICE AND ADJUSTMENTS WARNING: Do not at any time make any adjustment to the unit without first stopping engine and disconnecting spark plug wire. ADJUSTING THE CONTROL-FORCE Three holes in the belt guard allow you to reposition the hex cap screw to adjust the brake lever. The top hole (lite tension), the middle hole (medium tension) and the lower hole (hard tension).
  • Page 22: Cutting Height Adjustment Table

    CUTTING HEIGHT ADJUSTMENT TABLE Note: The front edge of the cutting deck should be 1/8” - 1/4” below the rear edge of the deck so that the blades are cutting grass in only the front half of their circular path. This decreases friction and reduces the drive power required. Figure 24 1/4”: Blade Spacers Approximate...
  • Page 23: Maintenance Schedule

    WARNING Before performing any type of maintenance/service, disengage all controls and stop the engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Always wear safety glasses during operation or while performing any adjustments or repairs.
  • Page 24: Off-Season Storage

    Never store lawn mower with fuel in tank indoors or in poorly ventilated areas where fuel fumes may reach an open flame, spark, or pilot light as on a furnace, water heater, clothes dryer, or gas appliance. Never refuel or drain the fuel system indoors.
  • Page 25: Troubleshooting

    Before performing any type of maintenance/service, disengage all controls and stop the engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to pre- vent unintended starting. Always wear safety glasses during opera- tion or while performing any adjustments or repairs.
  • Page 26 MTD Consumer Group Inc cannot deny warranty solely for the lack of receipts. As the lawn mower owner, you should however be aware that MTD Consumer Group Inc may deny you warranty coverage if your lawn mower or a part has failed due to abuse, neglect, or improper maintenance or unapproved modifications.
  • Page 27 The repair or replacement of any warranted part otherwise eligible for warranty coverage may be excluded from such warranty coverage if MTD Consumer Group Inc demonstrates that the lawn mower has been abused, neglected, or improperly maintained, and that such abuse, neglect, or improper maintenance was the direct cause of the need for repair or replacement of the part.
  • Page 28 The limited warranty set forth below is given by Cub Cadet LLC with respect to new merchandise used for commercial and related purposes...

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