Service Manual

19
BDP-10A/16A/21L
42A
(PORT "A"
SIDE)
42B
(PORT "B"
SIDE)
2/25
Figure 14. BDP-10A/16A
REMOVAL, INSPECTION AND/OR RE-
PLACEMENT OF CHECK VALVES
BDP-10A/16A
Refer to Figure 14.
Disassembly BDP-10A/16A
Perform disassembly, inspection and assembly
on check valves one side at a time. Some units
vary in “A” side to “B” side check configuration.
1. Remove the check valve (42) with 1/4” allen
wrench.
2. Remove the valve spring and poppet from
the BDP end cap (2/25).
Inspection BDP-10A/16A
1. Inspect the poppets and mating seats in the
end cap (2/25) for damage or foreign material.
Assembly BDP-10A/16A
1. Lay the BDP on its side, so the check plug
port is horizontal.
2. Insert the check plug, spring and poppet (42)
as one assembly into the check plug port.
Tighten, reference Tables 4 & 5, page 16, for
torque values.
Repeat disassembly, inspection and assembly
for the opposite port side.
REMOVAL, INSPECTION AND/OR RE-
PLACEMENT OF CHECK VALVES
BDP-21L
Refer to Figure 15.
Disassembly BDP-21L
Perform disassembly, inspection and assembly
on check valves one side at a time. Some units
vary in “A” side to “B” side check configuration.
1. Remove the check valve (42) with 1/4” allen
wrench.
2. Remove the valve spring and poppet from
the BDP end cap (25).
Inspection BDP-21L
1. Inspect the poppet and mating seats in the
end cap (25) for damage or foreign material.
Assembly BDP-21L
1. Lay the BDP on its side, so the check plug
port is horizontal.
2. Insert the check plug, spring and poppet (42)
as one assembly into the check plug port.
Tighten, reference Table 6, page 16, for torque
values.
Repeat disassembly, inspection and assembly
for the opposite port side.
Figure 15. BDP-21L
25
42B
42A