Service Manual

20
BDP-10A/16A/21L
Disassembly BDP-21L
Perform disassembly, inspection and assembly
on SCR/shock valve one side at a time. Some
units vary in “A” side to “B” side configuration.
1. Remove the SCR (42) with a 7/8” wrench or
the shock valve (42) with an 11/16” wrench.
2. Remove the check relief/shock valve spring
and the check relief/shock valve from the BDP
end cap (25).
Inspection BDP-21L
1. Inspect the check relief or shock valve(42)
and mating seat 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 system check relief spring and
check relief or shock valve spring and shock
valve 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.
REMOVAL, INSPECTION AND/OR RE-
PLACEMENT OF SYSTEM CHECK
RELIEFS (SCR’s) OR SHOCK
VALVES BDP-10A/16A
Refer to Figure 16.
Disassembly BDP-10A/16A
Perform disassembly, inspection and assembly
on SCR/shock valve one side at a time. Some
units vary in “A” side to “B” side configuration.
1. Remove the SCR (42) with a 7/8” wrench or
the shock valve (42) with an 11/16” wrench.
2. Remove the check relief/shock valve spring
and the check relief/shock valve from the BDP
end cap (2/25).
Inspection BDP-10A/16A
1. Inspect the check relief or shock valve (42)
and mating seat in the end cap (2/25) for dam-
age or foreign material.
Assembly BDP-10A/16A
1. Lay the BDP on its side, so the check plug
port is horizontal.
2. Insert the system check relief spring and
check relief or shock valve spring and shock
valve as one assembly into the check plug port.
Tighten to the correct torque value. See page 16.
Repeat disassembly, inspection and assembly
for the opposite port side.
Figure 16. BDP-10A/16A
Figure 17. BDP-21L
REMOVAL, INSPECTION AND/OR RE-
PLACEMENT OF SYSTEM CHECK
RELIEFS (SCR’s) OR SHOCK
VALVES BDP-21L
Refer to Figure 17.
42B
42A
2/25
42B
25
42A