Scag Power Equipment Freedom Z SFZ48-26BS Operations Instructions download pdf (Page 33)

Section 7

5. Once the hydraulic system has drained, install new

hydraulic oil filters to both axles by hand, turn 3/4 to

one complete turn after the filter gasket contacts the

filter base.

6. Reinstall the filter guards and torque the screws to 65

in/lbs.

7. Remove the top port plug from both axles before filling

with oil. (See Figure 7-4).

Figure 7-4 Top Port Plug Location

8. Fill the hydraulic system oil reservoir with 20w50

motor oil until oil just appears at the bottom of each

axles top port. Approximately 5 quart capacity.

Reinstall the top port plugs and torque to 180 in/lbs.

-NOTE-

The left side axle will fill with oil first using

approximately 4 quarts of oil. Reinstall the top port

plug in the left axle and continue filling the

hydraulic system through the reservoir. The right

side axle should fill up to the bottom on the top port

plug after adding an additional one quart of oil.

Reinstall the top port plug on the right axle and fill

the hydraulic oil reservoir to the proper level as

explained in Section 7.2.

REMOVE TOP

PORT PLUG

9. Reinstall the hydraulic oil reservoir cap.

10. The hydraulic system will need to be purged. Raise the

rear of the machine so the drive wheels are off the

ground. Use jackstands and block the wheels to prevent

the machine from moving.

11. Move the dump valve control levers to the "freewheel"

position. (See Figure 7-5).

12. While in the operator's position, start the engine and

disengage the parking brake.

13. Run the engine at 1/2 throttle and move the steering

control levers forward and backward 5 to 6 times.

14. Engage the parking brake. Move the dump valve control

levers to the drive position. (See Figure 7-5).

15. While in the operator's position,, run the engine at 1/2

throttle. Release the parking brake, move the steering

control levers forward and backward 5 to 6 times. It

may be necessary to repeat steps 12 to 15 until the air

is completely purged from the system.

16. Check the hydraulic system oil level as explained in

Section 7.2.

Figure 7-5 Dump Valve Control Lever

DUMP VALVE

CONTROL LEVER

"FREEWHEEL" POSITION

"DRIVE" POSITION

2007 SFZ DVL

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Scag Power Equipment Freedom Z SFZ48-26BS Operations Instructions Page 33

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