Hydraulic System - HUSTLER super 104 Service Manual

whichever comes first.
WARNING
If the transmission belt fails, loss of control will occur
especially when operating on a slope. If you lose steering
control while operating the machine, place the steering
control levers in the park brake position immediately.
Inspect the machine and involve your dealer to resolve
the problem.
Eye bolt
Hydraulic
pump belt
Tension
idler
Figure 4-15

Hydraulic System

IMPORTANT: Never use hydraulic or automatic transmis-
sion fluid in this system; use only motor oil as specified.
Remember, dirt is the primary enemy of any hydraulic system.
WARNING
Hydraulic fluid escaping under pressure may have
sufficient force to penetrate skin and cause serious
injury. Foreign fluid injected into the skin must be
surgically removed within a few hours by a doctor,
familiar with this form of injury, or gangrene may
result.
Before applying pressure to hydraulic system, make
sure all connections are tight and all hoses and lines
are in good condition. To find a leak under pressure,
use a piece of cardboard or wood — never use your
hands. Relieve all pressure in the system before dis-
connecting or working on hydraulic lines. To relieve
pressure, lower all attachments and shut off engine.
Check oil level in hydraulic system after every 50 hours of
operation or weekly, whichever occurs first. Check more often if
system appears to be leaking or otherwise malfunctioning.
Fluid level should be 1" (2.54cm) from top of reservoir. Use
REV B
Bottom View
Nut
Jam nut
8.75" – 9.25"
Spring
(222 – 235mm)
only 15W50 Mobil 1 oil. Figure 4-16
NOTE: The reservoir will require approximately 3 U.S. gal-
lons (11.35 liter) of 15W50 Mobil One oil when replacing the
oil after an oil and filter change. Do not overfill the reservoir.
Change hydraulic system filter element and oil after first 50
hours of mower operation, then replace filter and oil in reservoir
every 500 hours thereafter.
IMPORTANT: It is necessary to drain the system oil from
the hydraulic reservoir, using the reservoir drain plug, before
removing the hydraulic filter. Replace the drain plug before add-
ing system oil.
The Super 104 system filter is located inside the hydraulic
reservoir on the underneath side of the tank. Use a Hustler
approved filter element only. When changing the filter use a
15/16" socket. The threads are right hand. Figure 4-17
Hydraulic
reservoir
Hydraulic
filter
4-6
Figure 4-16
Figure 4-17
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