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TMS9000-2 OPERATOR MANUAL OPERATING PROCEDURES
Published 02-21-2019, Control # 611-05
• When necessary to use brakes to reduce crane speed
on a downgrade, use on-and-off application to minimize
heat and wear. Do not hold a continuous brake
application or slide the wheels.
• When driving on slippery pavement or under icy
conditions, alternately and smoothly apply and release
the brakes to prevent skidding. DO NOT pump the
brakes.
• Keep the tires properly inflated. Improperly inflated tires
can reduce the efficiency of the brakes.
• After driving through water, dry the brakes by applying
them lightly while maintaining a slow forward speed with
an assured clear distance ahead until brake
performance returns to normal.
• Regularly check the air pressure gauge indication.
System air pressure should never be allowed to fall
below 310 kPa (45 psi). If both systems drop below 310
kPa (45 psi), the automatic spring brakes will actuate.
Normal operating pressure range is 724 to 827kPa (115
to 135 psi).
NOTE: If the pressure drops below 14 kPa (2 psi) per
minute with the engine stopped, have the air
system checked for leaks.
• Parking brakes are controlled by a readily identified
push-pull knob on the dash panel. To apply the parking
brake, pull the knob out. To release the parking brake,
push the knob in.
Engine Brake
NOTE: Do not keep a foot lightly on the throttle pedal. This
will cause the engine brake not to come on.
Pressing the clutch pedal will disable the engine
brake.
By energizing the engine brake, the power producing diesel
engine, in effect, becomes a power absorbing air
compressor. To retard a crane on a downgrade using the
Engine Brake, the operator selects a gear which will provide
a balance between engine speed and road speed, then
engages the engine brake. If the engine speed exceeds
maximum rated RPM for a desired speed, a lower gear can
be selected or intermittent use of the service brakes can be
made. This selection of a lower gear will generally allow
complete control of the crane by the engine brake, leaving
the service brakes in reserve to be used for emergency
stops. With the engine brake turned on, the engine brake will
not be energized until the momentum is driving the engine.
Recommended Crane Shutdown Procedures
The following procedures will extend serviceable life of
various crane components, reduce vandalism and accidents
during crane shutdown periods or anytime the crane is left
unattended.
1. Park the crane on a proper surface with the outrigger
jacks and beams fully retracted. Do not park in a location
where it may become frozen to the ground or may settle
unevenly and overturn.
2. Apply parking brakes and, if necessary, chock the
wheels.
3. Ensure all controls are in neutral or off.
4. Shut down the engine using the proper procedures as
specified by this manual and the engine manual.
5. Perform any other specified procedures required at the
end of the workday, i.e., drain water from the fuel filter/
water separator, refueling, etc.
6. Close all windows.
7. Remove the keys from the crane.
8. Lock up the crane. Install vandal guards, if used.
9. Make a thorough walk around inspection to ensure that
all cylinders that can be retracted are retracted. The only
exceptions are those cylinders which cannot be fully
retracted, that is, steer cylinders. Also, look for anything
that could hinder or prevent starting the next day’s work.
WARNING
Never park the crane near holes, or on rocky or extremely
soft surfaces. This may cause the crane to overturn,
resulting in injury to personnel.
CAUTION
Step 9 does not take the place of the prestarting checks
which must be performed just prior to using the crane at
the next working day.
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