Cub Cadet 23HP Z-Force 60 service manual F. Hydraulic System

Models: 23HP Z-Force 60

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Note: If you wish to move the mower by pushing, you must release the dynamic brak- ing. Locate the levers at the rear of the mower. Pull both levers out and lock in position. After pushing the mower to the desired location, return both levers to the operating position (See page 18 Figure 8).

When the mower is parked with the engine running and the steering levers opened out in the neutral position, the parking brakes should be applied. The parking brakes are disk-type brakes integrated into each transaxle.They are both engaged by the same operating lever.

1.Adjustments: The parking brake handle is an overcenter lever that should engage with moderate force.

Note: To increase parking brake capacity tighten the brake rods going back to the brake arms equally. Tighten rods one full turn and check parking capacity. Repeat Step.

To adjust either brake individually, disconnect the brake rod from the brake arm by removing the cotter pin from the clevis pin and pulling the clevis pin from the brake clevis. Loosen the hex nut and turn the brake clevis in a clockwise direction one full turn looking down the brake rod. This will tighten the brake about .040 inch. Tighten the hex nut and reassemble the brake clevis to the brake shaft assembly. Normally, both brakes should be adjusted and equal amount.

2.Repair: The mower is equipped with internal wet disc brakes and will not normally require maintenance. If they are not working properly, please contact your service center.

F.Hydraulic System

1.Hoses: Check the hoses from the hydraulic oil tank to the transaxles daily for leaks or abrasion and replace any damaged hoses. Make certain there are no kinks or twists in any hose.

2.Hydraulic Oil Tank and Filters:

Note: Change the hydraulic oil and the oil filter after 500 hours of operation and every 500 hours thereafter.

To drain the hydraulic oil tank, place a 2 gallon drain pan under the transaxles. Remove the filters, drain the transaxles and the tank. Remove the filters by unscrewing in a counterclockwise direction. The filters will be full of oil, so empty each into the drain pan. Coat the filter seal with Shell Rimula 15W40 oil or equivalent. Screw the filter onto the filter base until it seats, and then add another one-half turn to seal.

Note: Always wipe off the hydraulic tank fill cap and the area around it before removing the cap to prevent dirt from contaminating the oil.

Remove the fill cap and fill the tank with the same 15W40 oil selected for the filter until the oil level is up to the full cold line on the tank. Leave this air space for expansion. Start the engine and let it run at idle for about five minutes. Check the filters for leaks. Idling the engine and the transaxless in this way will purge any air from the system. Shut off the engine and recheck the oil level in the tank. Top-off if necessary until the oil level is up to the full cold line on the tank.

Note: After unit is up to operating tempera- ture, turn off engine and re-check hydraulic oil. If oil appears foamy or contains excessive air bubbles, DO NOT OPERATE UNIT. Contact Cub Cadet Service Dealer.

3.Hydrostatic Transmissions and motors: The pumps are the hardest-working compo- nents in the hydraulic system. They are in operation all the time the engine is running. Because of extremely close tolerances, wear is an important factor in their life. Contami- nants in the hydraulic oil does the greatest harm to the pumps.

Contaminants or foreign matter in the oil will damage the pumps . To prevent this, use a fil- ter that captures particles as small as 30 microns or 30 millionths of a meter in diame- ter. You can help in the battle against dirt by being very careful when you remove or repair a component in the hydraulic system. Thor- oughly clean off any component before you work on it. Plug the ends of any hose or line you remove with a rubber or plastic plug. Use plastic caps to seal off the ends of hydraulic fittings. Place any component you remove in a clean plastic bag so it can’t pick up dust or dirt. Clean your hands frequently when work- ing on the hydraulic components.

Note: The transaxles are not owner-repair- able. If a transaxle fails, contact your cub cadet dealer. Do not disassemble the tran- saxle.

4.Steering Lever Adjustments: Place the mower on level ground with the engine run- ning, parking brake off and steering levers opened out to the neutral position. If the Mower begins to creep, adjust the Steering Levers.

If the mower creeps, first determine whether it creeps to the right or left side and which direc- tion the mower moves — to the front or the

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Cub Cadet 23HP Z-Force 60 service manual F. Hydraulic System