Service Manual

18
BDP-10A/16A/21L
Figure 12. BDP-10A/16A
1/15
37/13
49/12
REMOVAL, INSPECTION AND/OR RE-
PLACEMENT OF TRUNNION ARM
(CONTROL ARM) SEAL BDP-21L
Refer to figure 13.
Disassembly BDP-21L
1. Remove the retainer (10) and lip seal (2).
Care must be taken to prevent damage to the
housing trunnion bore, trunnion arm (13) and
sealing surface. Once removed lip seal (12) is
not reusable.
Inspection BDP-21L
1. With the lip seal (12) removed, inspect the
area for corrosion and wear. Inspect the trun-
nion bore area sealing surface for damage or
wear.
Assembly BDP-21L
1. Lubricate the new lip seal (12) with petroleum
jelly.
2. Wrap the trunnion arm (13) with plastic wrap
to prevent damage to the inner surface of the lip
seal (12).
3. Slide the lip seal (12) over the trunnion arm
(13) so that lettering on the seal (13) faces out.
4. Press the lip seal (12) into the housing bore
(15). Insure the seal (12), trunnion arm (13), and
housing bore does not become damaged.
5. Install the retainer (10) over the trunnion arm
(13) on top of the lip seal (12). Press into the
trunnion seal bore in the housing (15) bore ring
groove.
Figure 13. BDP-21L
15
12
13
10
REMOVAL, INSPECTION AND/OR RE-
PLACEMENT OF TRUNNION ARM
(CONTROL ARM) SEAL BDP-10A/16A
Refer to figure 12.
Disassembly BDP-10A/16A
1. Remove the retainer and lip seal (49/12) from
the housing (1/15). Care must be taken to pre-
vent damage to the housing trunnion bore, trun-
nion arm (37/13) and sealing surface.
Once re-
moved the retainer and lip seal is not reusable.
Inspection BDP-10A/16A
1. With the lip seal (49/12) removed, inspect the
area for corrosion and wear. Inspect the trun-
nion bore area sealing surface for damage or
wear.
Assembly BDP-10A/16A
1. Lubricate the new lip seal (49/12) with petro-
leum jelly.
2. Wrap the trunnion arm (37/13) with plastic
wrap to prevent damage to the inner surface of
the lip seal (49/12).
3. Slide the lip seal (49/12) over the trunnion arm
(37/13) so that the lettering on the seal (49/12) faces
out.
4. Press the lip seal (49/12) into the housing
bore (1/15). Insure the seal (49/12), trunnion arm
(37/13), and housing bore does not become
damaged.
5. Install the retainer from (49/12) over the trun-
nion arm (37/13) on top of the lip seal from (49/
12). Press into the trunnion seal bore in the hous-
ing until it mates against the trunnion seal.