FORM NO. 3318-413 GB Rev A MODEL NO. MODEL NO. MODEL NO. MODEL NO.
FOREWORD FOREWORD The 72” cutting deck has advanced concepts in engineering, design and safety; and if maintained properly, will give excellent service. Certain information in this manual is emphasized. DANGER, WARNING and CAUTION identify personal safety related information. IMPORTANT identifies mechanical information demanding special attention. Be sure to read this directive because it deals with the possibility of damaging a part or parts of the machine.
Safety Training 1. Read the instructions carefully. Be familiar with the controls and the proper use of the equipment. 2. Never allow children or people unfamiliar with these instructions to use the lawnmower. Local regulations may restrict the age of the operator. 3. 3. WARNING—Petrol is highly flammable. • Store fuel in containers specifically designed for this purpose. • Refuel outdoors only and do not smoke while refueling. • Add fuel before starting the engine.
Travel on grass slopes requires particular care. To guard against overturning: • do not stop or start suddenly when going up or downhill; 13.
7. If the fuel tank has to be drained, this should be done outdoors 8. On multi-bladed machines, take care as rotating one blade can cause other blades to rotate. 9. When machine is to be parked, stored or left unattended, lower the cutting means unless a positive mechanical lock is used. Sound & Vibration Levels Sound Levels This unit has an equivalent continuous A-weighted sound pressure at the operator ear of: 89 dB(A), based on measurements of identical machines per 84/538/EEC.
Symbol Glossary Caustic liquids, Poisonous Electrical shock, chemical burns to fumes or toxic electrocution fingers or hand gases, asphyxiation Crushing of whole body, applied from above High pressure High pressure Crushing of Crushing of spray, erosion of spray, erosion of fingers or hand, toes or foot, force flesh flesh force applied from applied from above above Crushing of Crushing of fingers Crushing of leg, Crushing of torso, force or hand/, force force applied whole body applied from side applied
Consult technical Fasten seat manual for proper belts service procedures Safety alert triangle Outline safety alert symbol Head protection Hearing Caution, toxic must be worn protection must risk be worn First aid Flush with water Engine Transmission Hydraulic system Exhaust gas Level indicator Liquid level Brake system Filter Oil Temperature Coolant (water) Intake air Failure/ Malfunction Start switch/ mechanism On/start Read operator’s Fire, open light manual and smoking prohibited Pre
n/min Engine start Engine stop Engine failure/ malfunction Engine rotational Choke speed/frequency Primer (start aid) Electrical preheat Transmission (low temperature oil start aid) NH L F Transmission oil pressure Transmission oil temperature Transmission Clutch failure/malfunction Neutral High Low Forward RP 1 2 3 Reverse Park First gear Hydraulic oil filter Hydraulic oil temperature Hydraulic oil Parking brake failure/malfunction Fuel Unleaded fuel Headlights Unlock Diesel fuel Pow
Specifications Width of Cut: (1.816 m) Height of Cut: Adjustable from 25 to 102 mm 13 mm increments. Cutter Housing: Both cutter housings are made from 11-gauge (13 mm) steel and reinforced with 89 mm x 4.76 mm channel iron . Cutting Unit Drive: The gear box is driven by the PTO shaft. Power is transmitted to the blades by three B-section belts. The spindle shafts are 32 mm in diameter and supported by two externally sealed, greaseable, tapered roller bearings.
2. Remove the check plug from the side of the gear box (Fig 15) and make sure the lubricant is up to the bottom of the hole. If the level of lubricant is low, remove the fill plug on top of the gear case and add enough lubricant to bring it up to the bottom of the hole in the side Figure 1 1. Filler plug 2. Check plug 1. 2. lynchg pin Large front castor 1. 2. 3. 4. 5.
the grass blades in the 25 mm height-of-cut setting with the rear of the cutting unit lowered, as this may cause the engine to labor excessively. 1. Start the engine and raise the cutting unit so the front-caster height of cut can be changed. Stop the engine after the cutting unit is raised. The rear caster height of cut can be changed with the cutting unit lowered. 2. Squeeze the back of the wire and rotate wire on the lynch pin. Pull the pin out of the caster spindle.
longed exposure, to reduce the potential of permanent hearing loss. Maintenance LUBRICATION GREASING BEARINGS, BUSHINGS AND GEAR BOX The cutting unit must be lubricated regularly. If the machine is operated under normal conditions, lubricate the caster bearings and bushings with No. 2 general purpose lithium grease or molybdenum base grease, after every 8 hours of operation or daily, whichever comes first. All other bearings, bushings and the gear box must be lubricated after every 50 hours of operation.
Replace Replace Inspect P.T.O. Shaft Broken OK Loose or Broken Inspect Pulley on Engine Output Shaft Retorque 115–149 Nm Sharpen or Replace Inspect Spindle Bolts Loose OK Dull or Bent Inspect Cutter Blades OK OK Tighten or Replace Tighten or Replace Inspect P.T.O. Belt Loose or Broken OK Loose or Broken Inspect P.T.O.
SEPARATING THE CUTTING UNIT FROM TRACTION UNIT 1. Position the machine on a level surface, lower the cutting unit to the shop floor, shut the engine off and engage the parking brake. 2 Remove the self-tapping screws securing the shield to the top of the cutting unit and set the shield aside. 3. Drive the roll pin out of the yoke and input shaft of the gear box (Fig. 9). Also, loosen the capscrews and locknuts. Slide the yoke off the input shaft.
7. Roll the cutting unit away from the traction unit. MOUNTING THE CUTTING UNIT TO THE TRACTION UNIT 1. Position the machine on a level surface and shut the engine off. 2. Move the cutting unit into position in front of traction unit. WARNING Since the right hand push arm is springloaded to about 100 pounds (445 N ) and left hand push arm is spring-loaded to about 150 pounds (667 N), a helper is needed to release push arms from the cutting unit. Sudden release of the push arms could cause injury. 3.
REPLACING BLADE DRIVE BELTS 1 Lower the cutting unit to the shop floor. Remove covers on top of the cutting unit and set covers aside. Loosen idler pulleys to release tension of belts. 2. Remove carriage bolts, lockwashers and nuts holding gear box in place. Lift gear box off mounting plate and lay it on top of the cutting unit. 3. Remove belts from the spindle pulleys. 4.
2. Grasp the end of the blade using a rag or thickly padded glove. Remove the special screw, belleville washer and blade from the spindle assembly (Fig. 13). Tighten the special screw to 102 to 136 N-m. INSPECTING AND SHARPENING THE BLADE 1. Raise the cutting unit to highest position, shut the engine off and engage the parking brake. Block the cutting unit to prevent it from falling accidentally. 2.
CHECKING AND CORRECTING MISMATCH OF BLADES If there is mismatch between the blades, the grass will appear streaked when it is cut. This problem can be corrected by making sure the blades are straight and all blades are cutting on the same plane. 1. Using a 1-meter long carpenters level, find a flat surface on the shop floor. 2. Set the rear caster wheels in the upper hole of the caster forks and adjust the height of cut so all six height-of-cut spacers are below the caster arm. 3.
hole location. 8. Tension the idler pulleys against all three belts. Also install the covers tothe top of the cutting unit. 9. Set the rear caster wheels in the lower holes in the caster forks if height-of-cut is above 25 mm and adjust height of cut. 10. Mount the cutting unit to the traction unit: refer to Mounting Cutting Unit To The Traction Unit. IDENTIFICATION AND ORDERING MODEL AND SERIAL NUMBERS The cutting unit has two identification numbers: a model number and a serial number.
