BF40AoBF50A
12) Remove the bottom piece from the cylinder.
Remove and discard the O-ring. Replace the O-ring
with a new one during reassembly.
Clean the threads of the bottom piece.
14) Remove the piston and free piston from the cylinder.
Remove and discard the O-rings and discard them.
Replace the O-rings with new ones during reassem-
bly.
VALVE BODY
1)
Remove the socket bolts and gear pump assembly.
Do not disassemble the gear pump assembly. If
it
is
faulty, replace it as an assembly.
2) Remove the two O-rings from the valve body and dis-
card them. Replace the O-rings with new ones during
reassembly.
[ l ] BOTTOM PIECE
/
161
CY LlNDER
I
141
151
FREE PISTON PISTON ROD
I '
[ l ] SOCKET BOLT B (3)
131
GEAR PUMP
ASSEMBLY
13-7