4 — MAINTENANCE
4-27
1
2
5
6
7
8
BASKET CONTROL VALVE BANK
FROM
GROUND
CONTROL
VALVE
BANK
4
3
2755 PSI
2
1
6
5
EMERGENCY
HAND PUMP
UPPER
BOOM LIFT
CYLINDER
LOWER
BOOM LIFT
CYLINDER
JIB
BOOM LIFT
CYLINDER
BASKET
SLEW
CYLINDER
CHECK
VALVE
Figure 4-18. Hydraulic Diagram, DC Model, Sheet 2 of 2