OPERATING CONTROLS AND PROCEDURES RT9150E OPERATOR MANUAL
3-108
Published 2-23-2017, Control # 644-00
Engine
Warm-up Procedures for All Temperature Ranges:
1. Upon startup, allow engine to idle for 3 to 5 minutes
before operating with a load.
2. Cold Engine Startup: After allowing the engine to warm
by idling it for 3 to 5 minutes, slowly increase engine
speed to provide adequate lubrication to bearings and
allow oil pressure to stabilize.
Transmission
Operating transmission with a sump temperature below
normal operating temperature is limited to:
• operating in neutral gear or
• driving with an unloaded crane while not exceeding
1500 engine RPM and not exceeding half throttle.
Warm-up Procedure
1. Engage parking brake and apply service brake.
2. Shift transmission into the highest gear and increase
engine RPM to 1500 for 15 seconds, then allow engine
RPM to return to idle.
3. Repeat Step 2 until temperature of transmission sump
reaches normal operating temperature.
Alternate Warm-up Procedure
1. Setup crane on outriggers.
2. Engage transmission with 4-wheel drive selected (if
equipped) and allow crane to run at idle until
temperature of transmission sump reaches normal
operating temperature.
NOTE: Warm-up operation of 4-wheel drive transmission
engaged in 2-wheel drive only could cause
transmission damage.
Hoist
Performing a warm-up procedure is recommended at every
startup and is required at ambient temperatures below 4°C
(40°F).
Warm-up Procedures:
1. Without operating hoist function, warm hydraulic oil (see
Hydraulic Oil System, page 3-108).
2. Once hydraulic system is warm, operate unloaded hoist,
in both directions, at low speeds several times to prime
all hydraulic lines with warm hydraulic oil and to circulate
gear lubricant through the planetary gear sets.
Swing Drive and Turntable Bearing
Warm-up Procedures for Temperatures Above -7°C
(20°F):
1. Setup crane on fully extended outriggers, with boom
fully retracted and near maximum lift angle with no load
applied.
2. Rotate superstructure at a speed of less than one RPM
for at least one complete revolution in one direction, then
rotate superstructure at a speed of less than one RPM
for at least one complete revolution in opposite direction.
Warm-up Procedures for Temperatures Below -7°C
(20°F):
1. Ensure boom is fully retracted and near maximum lift
angle with no load applied.
2. Rotate superstructure at a speed of less than one-half
RPM for at least two complete revolutions in one
direction, then rotate superstructure at a speed of less
than one-half RPM for at least two complete revolutions
in opposite direction.
Axles
Warm-up Procedures for Temperatures Below -35°C
(-30°F):
1. Setup crane on outriggers.
2. Engage transmission (see Transmission, page 2-1) with
4-wheel drive selected (if equipped) and allow crane to
run at idle until temperature of transmission sump
reaches normal operating temperature.
NOTE: Warm-up operation of 4-wheel drive transmission
engaged in 2-wheel drive only could cause
transmission damage.
CAUTION
For full load functionality, a minimum sump temperature of
20°C (68°F) is required. Before reaching 20°C (68°F)
sump temperature only neutral gear or unloaded driving is
allowed, not exceeding 1500 engine RPM and not
exceeding half throttle.
Reference Only
To Next Page
Loading...
Need help?
General
