Branson 2800h - Hydraulic Cylinder

HYDRAULIC SYSTEM
KUKJE MACHINERY CO., LTD.
149
4. CHECKING, DISASSEMBLING AND SERVICING
< Hydraulic piston >
1. Inject the compressed air into the hydraulic
cylinder, and take out the hydraulic piston.
▷ Reassembling
9 Take care not to damage the O-ring and backup
ring.
9 Apply transmission fluid to the O-ring.
9 Replace the O-ring if it is defective, worn or
scratched, which may case oil leakage.
< Lowering speed adjusting valve >
1. Remove the internal snap ring(1) and pull out
the lowering speed adjusting valve with shaft(2).
2. Draw out the ball(5) and spring(6).
▷ Reassembling
9 Take care not to damage the O-rings.
*. PART NAME
1) Internal snap ring
2) Lowering speed adjusting valve with shaft
3) Stopper 4) O-ring
5) Ball 6) Spring
7) Collar
4) Hydraulic Cylinder
< Separating hydraulic cylinder assembly >
-. Reference the page 89.
< Position control valve >
1. Remove the position control valve mounting
screws, and remove the position control valve.
▷ Reassembling
9 Take care not to damage the O-rings.
Tightening
torque
Position control
valve mounting
screws
23.6 to 27.4 N·m
2.4 to 2.8 kgf·m
17.4 to 20.2 ft-lbs