Servicing The Hydraulic Lift System - Toro MB TX 2500 Operator's Manual

Bleeding the Hydraulic Drive
System
Bleed the traction hydraulic system whenever you
perform maintenance on the hydrostatic transmission
or add hydraulic fluid to the expansion tank.
1. Park the machine on a level surface, move
the motion-control levers to the N
position, engage the parking brake, and lower
the hopper.
2. Shut off the engine, and remove the key. Allow
the engine to cool.
3. Check the hydraulic fluid level and add hydraulic
fluid as necessary; refer to
Hydraulic-Fluid Level for the Drive System (page
32).
4. Support the machine on jack stands, high
enough to raise the tracks off the ground.
5. Start the machine. Slowly move the
motion-control levers forward and reverse 5 to
6 times.
6. Check the hydraulic fluid level and add hydraulic
fluid as necessary.
7. Repeat steps 5 and
air is completely purged from the system.
Note:
Purging is complete when you obtain
normal forward and reverse speed.
8. Lower the machine and repeat the procedure
with the tracks on the ground.
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EUTRAL LOCK
Checking the
6 as necessary until all the
Servicing the Hydraulic Lift
System
Checking the Hydraulic-Fluid
Level for the Lift System
Service Interval: Before each use or daily
Reservoir-tank capacity: 1.4 L (1.5 US quarts)
Hydraulic-fluid type: Toro Premium All Season
Hydraulic Fluid or Mobil® 424 Hydraulic Fluid
Important:
Always use the correct hydraulic
fluid. Unspecified fluids will damage the hydraulic
system.
Note:
Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive for
the hydraulic system oil is available in 0.67 fl oz (20
ml) bottles. One bottle is sufficient for 4 to 6 gal (15 to
22 L) of hydraulic fluid. Order Part No. 44-2500 from
your authorized Toro distributor.
1. Park the machine on a level surface, move
the motion-control levers to the N
position, engage the parking brake, raise the
hopper, and install the cylinder lock.
2. Shut off the machine and remove the key. Allow
the machine to cool completely.
3. Remove the filler cap from the reservoir tank
(Figure 49).
CAUTION
The hydraulic breather/filler cap is
designed to pressurize the reservoir to
34 kPa (5 psi).
Loosen the cap slowly to avoid injury
whenever adding fluid or working on the
hydraulic system. Use a wrench on the
hex directly under the cap.
34
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EUTRAL OCK