Manitowoc 16000 Service And Maintenance Manual

Reference Only
Manitowoc Published 05-09-17, Control # 014-28 2-27
16000 SERVICE/MAINTENANCE MANUAL HYDRAULIC SYSTEM
2
NOTE: The cause of a failed pressure sender test or faulty
display pressure reading may not be the pressure
sender. The cause of the fault could be trapped air
or hydraulic pressure in the system during the
pressure sender test.
Before replacing a pressure sender, do the
following:
• Perform pressure sender test.
• Attach an accurate hydraulic pressure gauge
to the quick-coupler at the suspect pressure
transducer (see topic in this section).
• If pressure appears on the gauge, bleed the
corresponding system so the gauge reads
zero pressure.
• Repeat pressure sender test and check
pressure on the display with the engine
running at idle — the display reading and the
gauge reading should be the same.
• Before replacing a pressure sender, check the
signal voltage at the sender. It should be 1.00
volt against ground at 0 psi.
Control Calibration
See Figure 2-25 for the following procedure.
Control calibration calculates the pump threshold command
level for all drum and swing functions. The allowable range is
5 to 25% pump command signal for the hoist pumps and 2.5
to 20% in each direction for the swing pump(s).
Perform this calibration when:
- A new pump or motor is installed in a drum or swing
function.
- A new master node or master node software is
installed.
- Operation indicates threshold is in error.
- Excessive handle motion or time required to
initiate motion
- Inability to start motion smoothly
Calibrate controls as follows:
1. Apply all park brakes with switches on control console.
2. Start and run engine at high idle.
3. Press Enter button to go to Pressure Test and
Calibration screen from Menu screen.
4. Press Enter button to go to level 2. Use
Select buttons to show CONTROL
CALIBRATION icon in data box.
5. Press Confirm button to start test.
6. Calibration starts and percent of completion is displayed
in data box.
7. When calibration is complete, control calibration icon
reappears in data box.
Pump threshold command levels must be within a
specified range during this test. Any pump requiring a
threshold command level outside this range is
highlighted yellow. Troubleshoot failed circuit to
determine cause of fault.
FIGURE 2-25
D16-27B
Data Box

Manitowoc 16000 Specifications

General

Brand	Manitowoc
Model	16000
Category	Construction Equipment
Language	English