SSM60 & SSM72 (SZ330)

e. The label showing the relationships between the setting holes and cutting heights is stuck on the mower deck.

f. The right and left gauge wheels should be set to the same cutting height.

g. Shift the lift lever to down position ( ) to lower the mower deck.

CAUTION: Before operating the lift lever, be seated in the operator's seat and make sure of the safety conditions when lowering the mower deck.

3. STARTING MOWING OPERATION

a. Start the engine and shift the throttle lever,1, to the intermediate position between the low speed ( ) and high speed ( ) positions.

b. Shift the lift lever,2, to up position ( ) to raise the mower deck.

c. Release the parking brake.

d. Push the drive control lever gradually to drive the Zero turn mower into the working site.

CAUTION: Before starting to move the zero turn mower, be sure to lock the rear gauge wheels either in vertical or slanted positions.

e. Release the drive control lever gradually to stop the zero turn mower.

f. Shift the lift lever to down position ( ) to lower the mower on the ground.

g. Turn the PTO switch,3, to the ON ( ) position.

IMPORTANT:

• To engage PTO, first turn switch clockwise and then pull up it.

• When engaging the PTO clutch, slow down the engine speed sufficiently for safety.

CAUTION: Whenever you encounter with any trouble of the mower, ask your dealer for repair immediately.

WARNING: h. Shift the throttle lever to the high speed position ( ) to raise engine speed. i. As the drive control levers are pushed gradually, the Zero turn mower starts to travel.

• As soon as the PTO switch is turned to the ON ( ) position, the mower blades start rotating and eject cut grass or stones through the discharge opening. Consequently, before operating the PTO switch make sure that there is no people, animals, or physical properties like buildings, cars, etc. within a range where ejected grass or stones may reach.

• The mower blades should be turned only on turf or grassland with the mower deck lowered.

CAUTION: Be sure to start mowing at sufficiently low speeds and increase travelling speed gradually.

IMPORTANT: The engine hood and the radiator screen should be kept clean. Never keep on operating with clogged screens, or the engine may be overheated, which may result in engine seizure.

4. EMERGENCY STOP

• When any of the following abnormalities is encountered, stop the zero turn mower and mower deck immediately.

- Abnormal noise

- Abnormal vibration

- Abnormal smell

- Blade hitting an obstacle

- The zero turn mower hitting an obstacle

• The cause of trouble should be located and corrected immediately. If not, consult your dealers. Never attempt to keep on operating the zero turn mower without locating and correcting the cause of trouble.

• When leaving the zero turn mower to remove obstacles such as twigs, pebbles, etc., the PTO switch must be turned to the OFF ( ) position and the parking brake applied.

5. STOPPING MOWING OPERATION

a. Release the dive control levers and shift to lock position.

b. Shift the throttle lever to the low speed position ( ) to reduce engine speeds.

c. Apply the parking brake.

CHAPTER 4. MOWER OPERATION

CAUTION: Park the zero turn mower on level, hard ground and make sure that the parking brakes are applied securely.

d. Turn the PTO switch to the STOP ( ) position.

e. Turn the key switch to the STOP ( ) position to stop the engine.

IMPORTANT: f. Remove the starter key and cap the key hole without fail.

• Never attempt to stop the engine abruptly when it is running at high speeds.

• Be sure to let the engine idle for about 5 minutes after long operation and then stop the engine. Abrupt engine stopping may lead to overheating causing seizure.

CAUTION: When you leave the zero turn mower, be sure to stop the engine and remove the starter key to prevent the zero turn mower from being started unexpectedly by children or unauthorized people.

IMPORTANT:Be sure to cap the key hole after having removed the starter key. Otherwise, water or dust may enter into the switch, which may cause trouble.

6. EFFICIENT MOWING

IMPORTANT: a. For mowing tall grass i. Mow grass twice. ii. When trying to finish in one pass, select a sufficiently slow travelling speed. It may also be required to set the cutting width to half or one-third of that for normal operation. b. For mowing highly moist grass or on wet ground i. If turf damage by the tyres could result, wait until the grass and land have dried sufficiently. ii. Wet grass requires a higher grass cutting height setting than when mowing dry grass, as the cutting height is often lower than expected during operation. iii. Select a sufficiently slow travelling speed and avoid sudden starts, turns, and stops. If not, the turf may be damaged. c. For mowing low moisture content grass or when there is much dead grass i. Advance should be in a direction where the dust does not hit the operator by taking into consideration the direction of the wind. ii. When the air-intake screens are clogged, clean them at once.

• Be sure to mow at full throttle ( ).

• Choose an adequate traveling speed in accordance with the height or other conditions of grass to be cut.

• When the screens for the air-intake openings and radiator are clogged with dust, clean them at once. Never go on operating with clogged screens.

• Mowing is desirable when the grass is dew-free: in the afternoon or late afternoon, thus preventing the mower from heavy clogging.

• Always keep the mower deck clean.

• Check the blade ends for damage.

• Repeated mowing is recommended before the grass grows to high.

• Cutting grass too closely may damage the grass. To maintain a green lawn, never mow more than onethird off the height of the grass in one mowing.

• A slower travelling speed will result in improved mowing. Avoid selecting such a travelling speed that causes the zero turn mower to bounce.

• Short, fast turns will damage turf. Slow down sufficiently when turning.

• Frequent sharpening of the mower blades results in beautiful finish and less load on equipment, which leads to economical operation.

First, mow the grass to a height to make it low enough for the next finishing pass. Then finish to the desired grass height. The second travelling pass should be shifted side ways by 20 cm (8 in.) or so, or travel perpendicular to the first passes, which will result in a beautiful even finish.

IMPORTANT:

• When operating the zero turn mower in dusty circumstances, keep on paying attention to the coolant temperature warning lamp with buzzer.

• Never continue operating when screens are clogged, or engine breakdown may result.

1.

CHAPTER 5. INSPECTION AND MAINTENANCE OF MAJOR PARTS

CAUTION:

• When servicing the zero turn mower, place it on level, hard ground.

• Stop the engine and remove the starter key.

• Apply the parking brake securely.

• Shift the lift lever to down position ( ) to lower the mower to the ground.

• Turn the PTO switch to the STOP position ( ).

• Service the zero turn mower after the engine has cooled down sufficiently.

With these items in mind, confirm the safety conditions for maintenance operation without fail ahead of time.

• Inspection of oil level in the bevel gear case a. Bevel gear case: Remove the level plug,2, located on the left side wall of the gear case. b. Check to see if a small amount of oil overflows through the plug hole. If so, the level is normal. If not, replenish with gear oil SAE80 through the plug hole using an oil pitcher or the like.

IMPORTANT: Check the oil level after every 50 hours of operation.

OilGear oil SAE 80

CapacityBevel gear case0.4 liter (0.09 lmp.gal.)

IMPORTANT: Before replacing the level plug, by sure to wrap the threads with sealing tape without fail, or oil may leak through the plug.

• Replacement of oil a. Remove both belt covers (LH and RH). b. Remove the level plug and drain plug. Then drain all oil by tilting the gear case.

IMPORTANT: Replace oil after the initial 50 hours of operation and then after every 200 hours of operation.

SSM60 & SSM72 (SZ330)

c. Wrap the threads of the drain plug with sealing tape and screw it in and supply with fresh oil through the level plug hole using an oil pitcher.

d. Wrap the threads of the level plug with sealing tape and re-install it.

IMPORTANT: All oil spilt on the gear case mount should be wiped off completely with cloth. If it is not, the belt may be smeared with oil and become slippery.

e. Re-install the belt covers.

2. INSPECTION AND REPLACEMENT OF TIMINGBELT

Check if belt is tensioned properly. When its tension is correct, clearance between coils of tension spring should be 0.03-0.04" (0.9-1mm) or total length of tension spring when installed should be 5.12" (130±1mm).

• Inspection of belt

a. Remove both the belt covers installed on the mower deck.

b. Check the belt for damage and dirt. If it is smeared with oil or dirt, or wet with water, wipe it clean with a dry cloth. When damaged, install a new belt.

Replacement of the belt

CHAPTER 5. INSPECTION AND MAINTENANCE OF MAJOR PARTS

Remove 4 bolts from gear box mount,1, on right side.

Loosen lock nut of tension rod,2, and remove tension spring.

Remove belt and install a new belt referring to illustration for belt routing.

Make sure belt is seated properly in groove of each pulley. Apply tension to belt by adjusting belt tension rod to proper tension.

IMPORTANT: Be sure to tighten the bolts (M10) of the gear box mount.

Re-install all the belt covers.

Tighten lock nut of tension rod securely to prevent loss of tension.

Be sure to use the following belt size.

SSM60 SSM72 Belt (VC119) Belt (VC134)

■ HOW TO JACK UP

a. Turn on the engine, and raise the mower deck to its maximum.

b. Stop the engine, and apply the parking brake.

c. Set the gauge wheel to the minimum trimming position. Set the height adjust dial to the maximum trimming position.

d. Lower the mower deck and remove the lift link pin at the rear end,1.

e. Open the front cover,3.

SSM60 & SSM72 (SZ330)

f. Remove the jack fix pin,4, and set the jack on the frame and close the front cover.

h. Perform the above steps in reverse to return the respective parts to their original position.

DANGER:

• Choose a flat, stable surface when performing the jack-up operation.

• Please apply the parking brake before performing the above procedure.

• When working under the machine, the jack handle must he fixed on the handle stay.

3. INSPECTION & REPLACEMENT OF BLADES

3.1. BLADE REMOVAL

CAUTION: Be sure to wear gloves to avoid cuts by blades.

Block blades by inserting a piece of wood,1, between blade and mower deck. Loosen blade retaining nut with a 27-mm box end wrench. As blades are tightened with washers and shims, take care not to lose them when blades are disassembled.

3.2. SHIMMING OF BLADES

Tighten blade nuts temporarily to determine the height difference between blades. If more than 0.04" (1mm), correct with adjusting shims,2, Excessive difference in blade positioning will result in poor mowing finish.

Blade nuts,3, should be tightened to a torque of 94 ft.lbs. (1300 kgf･cm).

IMPORTANT: a. New Blade b. Blade with rounded edge c. Excessively worm blades are very dangerous. So replace such blades with new ones at once.

• If the blade ends have become round due to wear, enlarged clearance between blades leave uncut grass behind. The blade should be checked timely and worn ones should be replaced immediately.

• Low cutting height or the operation just after soil has been applied will wear blades rapidly. The blades should be checked more frequently.

CAUTION: When sharpening blade edges, both ends should be done in same manner or blade becomes unbalanced.

Pass a rod through blade center hole and check to see if blade is balanced properly. If balance is improper, correct it. Unbalanced blades will cause excessive vibration.

SSM60 & SSM72 (SZ330)

Parts code of blade.

Parts code of blade Punched ID

SSM608654-306-006-10 8654 C

SSM728655-306-003-10 8655 C

4. INSPECTION OF GAUGE WHEELS & ROLLERS

As the gauge wheels are installed on the front and rear ends of the mower, they are more vulnerable to being hit and deformed by obstacles than any other part. When a wheel does not turn smoothly or is deformed, replace it with a new gauge wheel immediately.

Gauge wheels,1, are very important parts to set grass cutting height. If a wheel does not turn smoothly or is deformed, replace it with a new gauge wheel immediately.

Make sure that all rollers,2, turn smoothly.

When wheels and rollers are hard to turn, disassemble and clean them.

After re-assembly, be sure to apply grease to axle shafts for gauge wheels and rollers.

5. CLEANING OF MOWER DECK

a. Remove both belt covers, and clear the grass and dust accumulated under the cover before operation, or shorter service life of the belts and damage to bearings and oil seals will be caused.

CAUTION: Be sure to replace the removed covers after cleaning.

b. Each blade shaft end and tension pulley end are equipped with a grease fitting. Inject grease through these fittings periodically and make sure that each part rotates smoothly.

c. After mowing, clear the underside of the mower deck and blades of accumulated grass and dirt. Especially after operation in wet grass, wash them without fail, or accumulated wet grass and dirt will cause performance deterioration.

CHAPTER 5. INSPECTION AND MAINTENANCE OF MAJOR PARTS

6. ADJUSTMENT OF DISCHARGE COVER ANGLE

The discharge cover is equipped with stoppers on the front and rear.

The angle can be adjusted by the effective length of the stopper. The length of the stopper can be adjusted by being moved through the washer on the stopper side from the nut side.

The discharge cover should be kept at a low angle as long as there is no inconvenience, as a discharge cover angled higher allows cut grass or pebbles to be ejected too far, which is very dangerous. Besides this will cause noisier operation.

7. FILLING DIAGRAM

All the shafts mentioned below have a grease fitting on their end. Grease them up periodically. The gear case should also be serviced periodically for oil replenishment and replacement.

(0.09)