Model 6210 Maintenance Manual

Hydraulic Fluid Level Check

NOTE: Always check the hydraulic fluid level with the forks fully lowered and when the hydraulic fluid is cold.

To prevent air from entering the lines:

1.Verify that the fluid level (with the forks fully lowered) is filled and visible to the oil fill line on the reservoir. The usable reservoir capacity is 5.4 qt. (5.1 liters).

2.Add the specified fluid if necessary. See “Lubrication Equivalency Chart” on pageA-2.

Changing Hydraulic Fluid

NOTE: Store and handle the hydraulic fluid with extreme care to prevent moisture and foreign matter from entering the hydraulic system.

NOTE: Contaminated hydrau lic fluid is the major cause of hydraulic system failures. Keep any service equipment, such as containers, funnels, and hand pumps, clean at all times. Cover them when not in use.

1.Lower the forks.

2.If equipped with the optional keypad, press the red OFF ( O ) key. Place the Main ON/OFF Switch in the OFF position. Disconnect the battery connector from the truck.

3.Remove the tractor covers.

Section 7.Component Procedures

4.Disconnect the hydraulic hose at the lift cylinder.

5.Insert the hose in a waste fluid container.

Fluid is under pressure and may spray or splash. Point the hose away from your body and hold firmly in a waste fluid container.

6.Connect the battery connector. Place the Main ON/OFF Switch in the ON position. If equipped with the optional keypad, enter your PIN-key code and then press the green ON ( | ) key.

7.Run the hydraulic pump by pressing the lift button until all the hydraulic fluid is pumped from the system.

8.If equipped with the optional keypad, press the red OFF ( O ) key. Place the Main ON/OFF Switch in the OFF position. Disconnect the battery connector from the truck.

9.Clean the filter screen and magnet at the bottom of the inlet tube with a suitable solvent.

10.Reconnect the lift cylinder hose.

11.Remove the fill plug. Fill the reservoir to the oil fill line with the recommended hydraulic fluid. See “Lubrication Equivalency Chart” on pageA-2.

12.Install the fill plug. Tighten until the base of the square top is flush with the top of the port.

13.Connect the battery connector. Place the Main ON/OFF Switch in the ON position. If equipped with the optional keypad, enter your PIN-key code and then press the green ON ( | ) key.

14.Raise and lower the forks several times to purge air from the system.

15.Return the forks to the lowest position and check the fluid level. Add fluid if necessary.

16.Install the tractor covers.

17.Dispose of the waste fluid correctly.

Publication: 1146947, Revised: 12 Jan 2017 7-75

Section 7.Component Procedures

Hydraulic

Hydraulic Pump

NOTE: For replacement parts information refer to the Parts Manual.

Hydraulic Pump Removal

1.Remove the hydraulic unit from the truck and put on a clean be nch for disassembly. See “Hydraulic Unit” on page7-72.

2.Remove the reservoir to gain access to the pump. See “Reservoir Removal” on page7-74.

3.Remove the inlet tube with the filter screen from the pump housing.

4.Remove the two pump mounting bolts then remove the pump from the adapter body.

Hydraulic Pump Installation

1.Stand the motor assembly on end, with the adapter body facing up.

2.Lubricate the O-ring with applicable hydraulic fluid and install on the adapter body facing up.

3.Insert the pump drive coupling on the end of the motor armature shaft and fill the cavity with anti-seize compound (P/N990-638).

4.Align the coupler on the motor drive and pump shaft. Gently push the pump pilot on the adapter.

5.Secure the pump with the two pump mounting bolts and torque to 40 to 45in.lb. (4.5 to 5 Nm).

6.Check the inlet screen for clogging. Clean with a suitable solvent. Install the inlet tube fitting into the pump. Torque fitting to 245 to 275 in. lb. (27 to 31 Nm).

7.Install the reservoir. See “Reservoir Installation” on page7-74