Manitowoc 999 Service And Maintenance Manual

Reference Only
ELECTRIC SYSTEM 999 SERVICE/MAINTENANCE MANUAL
3-34
Published 05-16-17, Control # 233-03
CRANE DIAGNOSTICS
To activate the diagnostic display screens, turn the limit
bypass key clockwise and scroll up at least one screen.
To deactivate the diagnostic screens, turn the limit bypass
key clockwise and scroll down at least one screen. The
normal operating screens will remain active.
The diagnostic display provides information about the status
of all main crane components as well as the controller inputs
and outputs during operation. The screen types are:
• Screens that display information about particular crane
functions — DRUMS 1, 2, 4, and 8, SWING, TRACK,
RIN, and ACCESSORY SYSTEM.
• Screens that display digital input and output information
— A1 (analog handle inputs to crane controller), D1
(digital outputs from crane controller), and D2 (digital
inputs to crane controller).
• Screens that display controller programming information
— A2, A3, and D3. These screens are for factory use
only, and are not shown.
• Screens that display hydraulic system calibration
information — HYD SYSTEM CHECK. Check includes
pressure sender, charge pressure, control calibration,
and pump pressure.
• Program screens, SWING SPEED/TORQUE, and
DRUM SLIP.
See Table 3-6
for Drum and Pump Identification.
Drum 1 and 2 (Front and Rear Drum)
1. The handle command in percent from neutral (+ raise
and - lower). For certain operating conditions the handle
command can be set to neutral by the controller even if
the handle is not in neutral.
2. The pump command in percent from neutral (+ raise and
- lower).
3. The motor command is in percent (0% is maximum
displacement, 100% is minimum displacement).
4. Parking brake command (1 release, 0 engage).
5. Clutch command (1 release, 0 engage) (applies only to
drums with free fall, otherwise has no meaning).
6. Measured pump pressure (port A) in psi.
7. Measured drum speed in rpm (+ raise and – lower).
X is where the corresponding drum number appears.
Drum 4 (Boom Hoist)
1. The handle command is in percent from neutral (+ raise
and - lower). For certain operating conditions the handle
command can be set to neutral by the controller even if
the handle is not in neutral.
2. The pump command is in percent from neutral (+ raise
and - lower).
3. The motor command is in percent (0% is maximum
displacement, 100% is minimum displacement).
4. Park brake command (1 release, 0 engage).
5. Measured pump pressure (raise) in psi.
6. Measured drum speed in rpm (+ raise and - lower).
Drum 8 (Auxiliary)
1. The handle command in percent from neutral (+ raise
and - lower). For certain operating conditions the handle
command can be set to neutral by the controller even if
the handle is not in neutral.
2. The pump command is in percent from neutral (+ raise
and - lower).
3. The motor command is in percent (0% is maximum
displacement, 100% is minimum displacement).
4. Park brake command (1 release, 0 engage).
5. Measured pump pressure (raise) in psi.
6. Measured drum speed in rpm (+ raise and - lower).
FFall
1. The drum 1 pedal command is in percent (0% applied,
100% fully released).
2. Drum 1 PC output to proportional valve in percent of
pressure (0% to 100%).
3. Drum 1 measured pressure to clutch/brake piston in psi.
4. Drum 1 clutch/brake command is (0 disengaged,
1 engaged).
1
6
2
7
3
DRUM
4 5
X
1
5
23
DRUM
4
4
6
1
5
2 3
DRUM
4
8
6
1 23
FFALL
4
5 678

Manitowoc 999 Specifications

General

Brand	Manitowoc
Model	999
Category	Construction Equipment
Language	English