Special Precautions 2000 SRM 1025
The function of the auxiliary cylinder(s) varies based
on the optional attachment.
HYDRAULIC OIL
The hydraulic oil in the system performs the dual
function of power transmission and lubrication. Us-
ing the correct fluid is essential to proper system
operation. See Periodic Maintenance 8000 SRM
1027 for the recommended hydraulic oil.
The level in the reservoir should be checked first
when troubleshooting lifting problems. Low oil lev-
els may make it appear that a problem exists with
the battery or hydraulic system.
CLEAN
Adhere to the following precautionary steps to be
sure that the hydraulic system remains clean.
1. Clean the reservoir and pump area to prevent
contaminants from entering the hydraulic sys-
tem.
2. Clean (flush) the entire system when a failure
is encountered to make sure all contaminants,
debris, and foreign objects are removed.
3. Filter each change of oil to prevent the introduc-
tion of contaminants into the system.
4. Provide continuous protection from airborne con-
tamination by keeping the breather cap clean
and serviceable.
SOUND LEVEL
Hydraulic system noise may be caused by both im-
properly selected oil and loose or damaged system
components.
• Cavitation - Can be caused by high fluid viscos-
ity, cold fluid temperatures, or a restriction in the
inlet screen or inlet tubing. At startup, low temper-
atures can cause pump noises due to cavitation.
• Aerated hydraulic oil - Results in system noise
that is similar to cavitation. Aerated oil is caused
by the ingestion of air through the pipe joints of
the inlet lines and high-velocity discharge lines, as
well as cylinder rod packing. Aeration can also
be caused by oil discharging above the fluid level
in the hydraulic reservoir. Air does not have suf-
ficienttimetoescapefromthefluidwhileinthe
reservoir before recycling through the system.
Special Precautions
WARNING
The capacitor in the transistor controller can
hold and electrical charge after the battery is
disconnected. To prevent an electrical shock
and personal injury, discharge the capacitor
before inspecting or repairing any component
in the drive unit compartment. Wear safety
glasses. Make certain that the battery has
been disconnected.
CAUTION
To avoid
controller damage, always disconnect
the batt
ery, discharge the capacitor, and never
put pow
er to the controller while any power
wires are
disconnected. Never short any con-
troller t
erminal or motor terminal to the bat-
tery. Mak
e sure to use proper procedure when
servici
ng the controller.
1. Verify th
at the key switch is in the OFF position
and the b
attery connector is completely discon-
nected.
2. Dischar
ge the capacitors in the controllers by
connect
ing a 200-ohm, 2-watt resistor across
the cont
roller’s B+ and B
terminals. DO NOT
short ac
ross the motor controller terminals
with a sc
rewdriver or jumper wire. Remove the
200-oh
m, 2-watt resistor before reconnecting the
batter
y. SeeFigure1.
2
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