Hydraulic System; Fuel And Evaporative Emissions Control System - HUSTLER Super 104 Operator's Manual

A maintenance-free battery is recommended. Otherwise,
follow battery manufacturer's maintenance, safety, storing
and charging specifications.
Master In-line Fuse
These mowers have a master in-line fuse in the electrical
system. This is the main fuse to protect the complete
electrical system. It is located at the left front corner of the
engine. Figure 4-1
A
A. Master fuse housing
Figure 4-1

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 sys-
tem.
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
disconnecting 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" (25.4mm) from top of reservoir.
Use only 15W50 Mobil 1 oil. Figure 4-2
REV B
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 annually or every 500 hours whichever comes first.
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
adding 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 4-3
A
B. Hydraulic reservoir
Hydraulic Oil Heat Exchanger
The Super 104™ is equipped with a hydraulic oil heat
exchanger. The heat exchanger coils must be kept clean to
insure that the hydraulic oil is operating within the correct
temperature range.
Check and clean the heat exchanger daily and more often
in dirty, dusty conditions.

Fuel and Evaporative Emissions Control System

IMPORTANT: Refer to the Safety section of this manual for
fuel handling safety information.
Use only Hustler approved replacement parts.
®
Your evaporative emission control system may include
parts such as:
• fuel tanks
• fuel lines
• fuel line fittings
• fuel caps
4-2
Figure 4-2
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