Manitowoc 16000 User Manual

Reference Only
Manitowoc Published 05-03-17, Control # 228-03 1-51
16000 SERVICE/MAINTENANCE MANUAL INTRODUCTION
1
selected crawler pin handle. The Node-1 controller monitors
the system pressure.
Hydraulic fluid enters the piston end of cylinder, extending
the cylinder rod, pushing the pins to secure the crawler frame
to the carbody. Hydraulic fluid from the rod end of the crawler
pin cylinder flows through the lower accessory valve and
returns to the tank.
When the crawler pin handle is moved back to the center
position, the selected crawler pin valve shifts to the center
position and closes system pressure to the cylinders. The
Node-3 controller sends a zero-volt output to disable the
accessory system proportional relief solenoid HS-68.
When a crawler pin handle is moved up to disengage the
crawler pins from the crawler track frame, the valve shifts to
allow system pressure to the pin cylinders. The lower
accessory enable pressure sender senses a pressure drop
and sends an input signal to the Node-1 controller. The
Node-3 controller sends a variable 0 to 24 volt signal to the
accessory system proportional relief solenoid HS-68 to
increase the relief valve setting to approximately 207 bar
(3,002 psi). The system pressure increases to operate the
selected crawler pin handle. The Node-1 controller monitors
the system pressure.
Hydraulic fluid enters the rod end of the cylinders, retracting
the cylinder rods, pulling the pins to disengage the crawler
frame from the lowerworks. Hydraulic fluid from the piston
end of the crawler pin cylinders flows through the lower
accessory valve and is returned to the tank.
When the crawler pin handle is moved back to the center
position, the selected crawler pin valve shifts to the center
position and opens the line to the cylinders. The Node-3
controller sends a zero-volt output to disable the accessory
system proportional relief solenoid HS-68.
Carbody Jacking Cylinders (optional)
See Figure 1-42.
The two-stage telescopic type jacking cylinders are mounted
on each corner of the carbody. The jacking cylinder operation
is controlled with the hydraulic valve handles on the front of
the carbody and PC programming. Operation of all four
jacking cylinders is the same. The following description of
the operation is for a single jacking cylinder.
Each carbody jack cylinder has a counterbalance valve at
the cylinder ports. The counterbalance valves ensure
smooth control when raising or lowering the crane. The
counterbalance valves lock the carbody jacking cylinders in
place if there is a hydraulic line breakage or accidental
operation of the control valve when the crane's power is shut
down. Also, the counterbalance valves provide relief
protection for the cylinders and shields them from
mechanical overloading.
When a carbody jacking cylinder control valve handle is not
enabled, it assumes a neutral position and hydraulic fluid
passage to the carbody jacking cylinder is blocked. In
neutral, both valve section cylinder ports are connected to
the tank. This prevents in-line pressure from opening the
counterbalance valve, holding the carbody load in position
by the counterbalance valve.
When a carbody jack handle is moved back to raise, the
valve shifts to allow system pressure to the jack cylinder. The
lower accessory enable pressure transducer senses a
pressure drop and sends an input signal to the Node-1
controller. The Node-3 controller sends a variable 0 to 24 volt
signal to accessory system proportional relief solenoid HS-
68 to increase the relief valve setting to approximately 207
bar (3,002 psi). The system pressure increases to operate
the selected jack handle. The Node-1 controller monitors the
system pressure.
Hydraulic fluid enters the piston end of the cylinder,
extending the cylinder rod, raising the carbody and the
upperworks. Hydraulic fluid from the rod end of the cylinder
flows through the lower accessory valve and returns to the
tank.
When the handle is moved back to the center position, the
selected valve shifts to the center position and closes the
system pressure to the cylinders. The Node-3 controller
Lower Accessory
Enable Pressure
Sender
FIGURE 1-41
Engine Pump
16-1028
500 to 3,000 psi
(35 to 204 bar)
WARNING
Collapsing Hazard!
Keep the rotating bed as level as possible while jacking.
Operating the jacking cylinder with the rotating bed more
than 4° out of level can cause structural damage to the
jacking cylinders and possible collapse of the rotating
bed.
Lower Accessory
Enable Pressure
Sender
Engine Pump
16-1028
500 to 3,000 psi
(35 to 204 bar)
FIGURE 1-42

Manitowoc 16000 Specifications

General

Brand	Manitowoc
Model	16000
Category	Construction Equipment
Language	English