BRADEN HP35A - Page 7

7
Motor
Control Valve
Pump
To Tank
Brake Valve
Static Brake
Medium
Pressure
Low
Pressure
High
Pressure
Figure 1
Figure 2
Figure 3
Motor
Control Valve
Pump
To Tank
Brake Valve
Static Brake
Medium
Pressure
Low
Pressure
High
Pressure
Motor
Control Valve
Pump
To Tank
Brake Valve
Static Brake
Medium
Pressure
Low
Pressure
High
Pressure
Sprag Cams
Figure 4
Static Friction Brake Applied
Permits free shaft rotation while hoisting
Hoisting
Sprag Cams
Figure 5
Static Friction Brake Applied
Load attempts to rotate shaft in opposite direction
Brake clutch locks sun gear shaft to friction brake
Stopped,
Holding
Load
HOISTING
START OF LOWERING
(Static Brake Released but Brake Valve Not Open)
LOWERING