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RT9150E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
Published 2-23-2017, Control # 644-00
Hydraulic Oil System
Operating Limits and Warm-up Procedures:
• From 4°C to -10°C (40°F to 15°F): Crane operation
without
a load is allowed with medium engine RPM and
medium function speed (joystick position) until fluid
reaches at least 10°C (50°F). It is then recommended
that all crane functions be cycled to remove cold fluid
from all components and cylinders of the hydraulic
system. If there is any unusual sound coming from the
crane’s hydraulic pumps or motors, stop operation and
engine immediately and contact a Manitowoc distributor.
• From 10°C to 4°C (50°F to 40°F): Crane operation with
a load is allowed with medium engine RPM and medium
function speed (joystick position) until fluid reaches at
least 10°C (50°F).
• From 95°C to 10°C (200°F to 50°F): Crane operation
with a load is allowed with no restrictions.
• Above 95°C (200°F): No crane operation is allowed. Let
crane’s hydraulic oil cool by running engine at idle with
no functions actuated.
Battery Disconnect
The battery disconnect switch is located near the battery box
and the left rear wheel on the left side of the crane. To
disconnect the batteries, place the battery disconnect switch
to OFF. Place the switch to ON to connect the batteries.
Engine Operation
Starting and shutdown procedures for most diesel engines
generally follow the same pattern. Therefore, the following
procedures can be applied except where specific differences
are noted. (Refer to the applicable engine manufacturer’s
manual for detailed procedures.)
Starting Procedure
Make an under-the-hood inspection for fuel, oil, and coolant
leaks, worn drive belts, and trash build-up.
If the crane was inactive for over 24 hours and the batteries
were disconnected, make sure to connect the batteries
before proceeding with start-up procedure.
Warm Engine
NOTE: The engine ECM monitors the engine and, under
certain conditions, cycles the air heater on and off
at start-up and during operation.
The engine is equipped with an electric air heater grid at the
air inlet elbow to aid in cold starting and reduce white smoke
at start-up. In the preheat mode, the engine should not be
cranked until the WAIT-TO-START lamp turns off.
1. Ensure the service brake pedal is depressed, parking
brake is set and the transmission is in neutral.
NOTE: Engine will not crank unless service brake pedal is
depressed and transmission shift lever is in neutral.
2. Turn the IGNITION switch to START and release
immediately when the engine starts. Do not push or hold
the throttle down. The ECM will automatically provide
the proper amount of fuel to start the engine.
3. Immediately check the engine instruments for proper
indications after starting. Shut down the engine if the oil
pressure gauge does not reach the proper reading
within 15 seconds.
4. Allow engine to warm up at least five minutes before
applying a load. Do not race engine for a faster warmup.
WARNING
Diesel engine exhaust can be harmful to your health. Only
operate the engine in a well ventilated area or vent
exhaust outside.
Before starting the engine, apply the parking brake and
engage the swing lock.
CAUTION
Never crank the engine for more than 30 seconds during
an attempted start. If the engine fails to start after 30
seconds, stop and allow the starter motor to cool for
approximately two minutes before attempting another
start.
If the engine fails to start after four attempts, correct the
malfunction before attempting further starts.
Damage to the starter or other components could result if
these warnings are not followed.
WARNING
Do not spray starting fluid into the air inlet. The spray will
contact the heater elements and could explode causing
personal injury.
CAUTION
If temperature indicator(s) do not display proper readings,
shut down the engine and correct the malfunction before
resuming operation.
Reference Only
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