TM 5-5420-234-14&P
2-2.
LOCATION AND USE OF CONTROLS AND INDICATORS (continued).
1
2
3
4
5
MODEL A SHOWN
Figure 2-3. Main Hydraulic Manifold
Key
Control or Indicator
Function
1
Hourmeter (Model A only)
Records the number of hours the hydraulic unit is in operation.
2
Main Frame Solenoid
Raises the main frame during emergency operations when electric
power is lost.
3
Hook Arm Solenoid
Raises the hook arm during emergency operations when electric
power is lost.
4
Winch Solenoid
Pays out the winch cable during emergency operations when
electric power is lost.
5
Main Relief
Is the main hydraulic relief valve.
2-7
Change 1
