Hydraulic System Maintenance; Hydraulic System Safety; Servicing The Hydraulic System - Toro Z Master Professional 7500-D Series Operator's Manual

Hydraulic System
Maintenance

Hydraulic System Safety

•
Seek immediate medical attention if fluid is injected
into skin. Injected fluid must be surgically removed
within a few hours by a doctor.
•
Ensure that all hydraulic-fluid hoses and lines are
in good condition and all hydraulic connections
and fittings are tight before applying pressure to
the hydraulic system.
•
Keep your body and hands away from pinhole
leaks or nozzles that eject high-pressure hydraulic
fluid.
•
Use cardboard or paper to find hydraulic leaks.
•
Safely relieve all pressure in the hydraulic system
before performing any work on the hydraulic
system.
Servicing the Hydraulic
System
Hydraulic-Fluid Specifications
Hydraulic-tank capacity: 15.1 L (16 US qt)
Recommended fluid: Toro Premium
Transmission/Hydraulic Tractor Fluid (available in
5-gallon pails or 55-gallon drums. See the Parts
Catalog or contact an authorized Toro distributor for
part numbers.)
Alternate fluids: If the Toro fluid is not available,
Mobil® 424 hydraulic fluid may be used.
Note:
Toro does not assume responsibility for
damage caused by improper substitutions.
Note:
Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive
for the hydraulic-system fluid is available in 20 ml
(2/3 fl oz) bottles. 1 bottle is sufficient for 15 to 22 L
(4 to 6 gallons) of hydraulic fluid. Order Part Number
44-2500 from your authorized Toro distributor.
Checking the Hydraulic-Fluid
Level
Service Interval: Before each use or daily
Check the hydraulic-fluid level before you first start
the engine and daily thereafter.
1. Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2. Move the motion-control levers to the
N -
EUTRAL LOCK
Note:
Run the engine at the lowest possible
rpm to purge any air in the system.
Important:
Do not engage the PTO.
3. Raise the deck to extend the lift cylinders, shut
off the engine, and remove the key.
4. Raise the seat to access the hydraulic-fluid tank.
5. Remove the hydraulic-tank cap
1. Hydraulic-tank cap
2. Dipstick
6. Remove the dipstick and wipe it with a clean rag
(Figure 67).
7. Place the dipstick into the filler neck, remove it,
and check the fluid level
Note:
If the level is not within the notched area
of the dipstick, add enough high-quality hydraulic
fluid to raise the level to within the notched area.
Important:
Do not overfill.
1. Full line
55
position and start the engine.
(Figure
Figure 67
3. Filler neck
(Figure 68).
Figure 68
2. Add line
67).
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