Manitowoc Published 10-01-2012, Control # 045-08 3-27
777 SERVICE MANUAL ELECTRIC SYSTEM
3
1
2
8
Drum Identification
Drum
Number
Drum
1 Front Load Drum
2 Rear Load Drum
8 Auxiliary Load Drum
(in boom butt)
FIGURE 3-7
A969
Handle/Pedal Identification
Handle
Number
Handle
1 Front Load Drum
2 Rear Load Drum or
Luffing Hoist*
3 Boom Hoist
4 Swing
5 Right Crawler
6 Left Crawler
7 Auxiliary Load Drum (in butt)
Pedal
Number
Pedal
1 Right Crawler
2 Left Crawler
FIGURE 3-8
65
7
3
4
12
12
A969
* Activated only in LUFFING JIB Mode.
Pump Identification
** If without an auxiliary load drum, pump 1
is mounted next to pump drive.
With an auxiliary load drum, pump 10 is
mounted next to pump drive and pump 1
is mounted on rear of pump 10.
Pump
Number
Pump
0 Front Load Drum
1 Rear Load Drum or
Luffing Hoist
2 Boom Hoist
3Swing
4 Right Crawler
5 Left Crawler
10 Auxiliary Load Drum
(in butt)
Pump Port Identification
Pump
Number
Port A Port B
0, 1, 2, 10 Raise Lower
3 Right Left
4 Forward Reverse
5 Reverse Forward
0
3
4
1**
5
2
Supercharge/
FIGURE 3-9
A969
Accessory
1 or 10**
Pump
Drive
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