FORM NO. 3318-416 GB Rev A MODEL NO.
FOREWORD FOREWORD The 62” 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.
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 Height of Cut: Adjustable from 1” to 4” (25 to 102 mm) in 1/2” (13 mm ) increments. Blade Tip Speed: 264 ft/sec. @ 3250 engine rpm. Cutter Blades: Three heat treated steel blades, each 3/16 in. (4.8 mm) thick and 21-1/2” (55 mm) long. Pneumatic Wheels: 8 in. (203 mm) dia. with greaseable roller bearings. (Inflation 20-30 P.S.I.) Unit Drive System: PTO driven gear box transmits power through a “AA” section belt to all blade spindles.
3. Install the cotter pins to secure the assemblies. ADJUSTING SKID 1. After initial set up or if you change the height of cut, the deck skid should also be adjusted. 25 mm height of cut—Skid all the way up 38 mm height of cut—Skid 6–9.5 mm off the ground 63 mm and higher—Skid all the way down 2. Adjust the skid by loosening the flangenuts, positioning the skid as desired, and re-tightening the flangenuts (Fig. 1). 3. Position the roller bracket in the bottom mounting holes and reinstall the nuts.
Operating Instructions GRASS DEFLECTOR WARNING The grass deflector is a safety device that diverts grass and other foreign objects being discharged downward. WE STRONGLY RECOMMEND THAT THE DEFLECTOR BE IN ITS NORMAL OPERATING POSITION WHENEVER THE CUTTING UNIT IS ENGAGED. NEVER OPERATE THE CUTTING UNIT WITH THE DEFLECTOR REMOVED FROM THE CUTTING UNIT OR WITH IT ITED/BLOCKED IN A RAISED POSITION.
CAUTION Counterbalance spring(s) are in tension when the deck is in the lowered position. Always raise the deck before adjusting or removing the springs. Maintenance Lubrication GREASE BEARINGS AND BUSHINGS The cutting unit must be lubricated regularly. If the machine is operated under normal conditions, lubricate the castor bearings and bushings with No. 2 general purpose lithium base grease or molybdenum base grease, after every 8 hours of operation or daily, whichever comes first.
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 THE TRACTION UNIT 1. Position the machine on a level surface, raise the cutting unit, engage the parking brake, be sure the traction pedal is in neutral position, PTO lever in OFF position, shut engine OFF and remove the key from the switch. CAUTION Counterbalance springs are in dension when the deck is in its lowered position. Always raise the deck before adjusting or removing the springs. 2.
3. Rotate the PTO shaft to align the hole in the PTO shaft with the hole in chassis (Fig. 11). 4. Through the access hole in the chassis, drive the roll out of the PTO shaft and output shaft with pi punch and hammer (Fig. 11). 5. Loosen or remove bolts and locknuts and remove the PTO shaft. 6. Reinstall the wheel with (5) wheel nuts previously removed. Tighten the nuts to 80–109 kPa. 7. Lower the machine and remove jack.
IMPORTANT: When bushings are installed, the inside diameter may collapse slightly, and this may not allow the castor shaft to be installed. If the castor spindle does not slide through new bushings and mounting tube, ream both bushings to inside diameter of 28.6 mm. SERVICING THE CASTOR WHEEL AND BEARING The castor wheel rotates on a high-quality roller bearing and is supported by a spanner bushing.
wires from the spark plugs. Block the cutting unit to prevent it from falling accidentally. 2. 3. Rotate the blade until the ends face forward and backward. Measure from inside of the cutting unit to the cutting edge at front of blade (Fig. 14), and remember this dimension. Figure 14 Rotate the opposite end of the blade forward. Measure between the cutting unit and the cutting edge of blade at the same position as in step 2.
cutting edges and the sail, which is the turned up portion opposite the cutting edge, contribute to a good quality-of-cut. The sail is important because it pulls grass up straight, thereby producing an even cut. However, the sail will gradually wear down during operation, and this condition is normal. As the sail wears down, the quality-of-cut will degrade somewhat, although the cutting edges are sharp. The cutting edge of the blade must be sharp so the grass is cut rather than torn.
CORRECTING CUTTING UNIT MISMATCH If one cutter blade cuts lower than the others, correct as follows: 1. Lower the cutting unit onto a level surface, engage the parking brake, be sure the traction pedal is in neutral position, the PTO lever in the OFF position, shut engine OFF, remove the key from the switch and disconnect wires from spark plugs. Make sure tire pressure is equal on all tires. 2. Raise the height-of-cut to the 4 in. position: refer to Adjusting Height Of Cut. 3.
A. Cutting units usually operated at 25 mm to 50 mm heightof-cut should have the low side of the cutting unit raised. Remove the lynch pin securing castor wheel on low end (Fig. 19) and remove the castor assembly. B. Transfer one thrust washer from top side of the castor shaft to lower side, install the castor assembly and compare blade height of all blades; refer to items 3 through 7. Continue adding thrust washers if height still does not meet requirements. C.
ADJUSTING THE IDLER PULLEY The idler pulley applies force against the belt so power can be transmitted to the blade pulleys. If the idler is not tensioned against the belt with sufficient force, maximum power will not be transmitted to the pulleys. Tension on the belt requires 54 to 68 Nm of torque on the large nut, which applies force against the belt If the idler is not adjusted to these specifications, adjustment is necessary. 1.
4. To install a new belt, the gear box base must be removed. To do this, remove the four carriage bolts and locknuts holding the gear box base. 5. Install the new belt around the gear box pulley, spindle pulleys, stationary idler pulley and adjustable idler pulley. 6. Install the gear box base with carriage bolts and locknuts. 7. Using a torque wrench, adjust the tension of idler pulley against the belt: refer to Adjusting The Idler Pulley. 8. Reinstall covers and secure latches.
