Model 8210/8250 Maintenance Manual Section 7. Component Procedures
Hydraulic Components Hydraulic Fluid
Publication: 1146945/001, Revised: 25 Sep 2018 7-95
Hydraulic Fluid
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 with hydraulic fluid
to 6.5 ±0.25 in. (165 ±6 mm) from the
bottom of the reservoir. See Figure 7-114.
The usable reservoir capacity is 0.9 qt.
(0.85 liters).
2. Add the specified fluid if necessary. See
“Lubrication Equivalency Chart” on
page A-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.
N
OTE: Contaminated hydraulic 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. See “Tractor
Cover Removal” on page 7-8.
4. Remove the main harness bracket. See
“Main Harness Bracket Removal” on
page 7-70.
5. Disconnect the lift cylinder hose at the
hydraulic cylinder.
Figure 7-107. Hydraulic Connections
6. 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.
7. 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.
8. Run the hydraulic pump by pressing the
lift button until all the hydraulic fluid is
pumped from the system.
9. 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.
10. Clean the filter screen and magnet at the
bottom of the inlet tube with a suitable
solvent.
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