SER 9916-A
Low-Pressure Transfer Pump
Revision (2-10)
6
Alemite LLC
5. Closely inspect the mating surfaces of all check valve
components for any imperfections. Ensure a smooth
and clean contact is obtained when assembled.
EXAMPLE
: Place Ball (
32
) into Seat (
33
).
Fill the Seat with solvent. Make sure no
leakage occurs.
Assembly
NOTE
: Prior to assembly, certain compo-
nents require lubrication. Refer to
Table 3
for details.
Pump Tube Assembly
NOTE
: Refer to
Figure 4
for a section view
of the pump tube assembly.
IMPORTANT: The following procedures
begin with the Outlet Body assembled to the
bottom end cap of the air motor, Keepers
(13), Couplings (14), and Tie Rods (12).
Should this subassembly require replace-
ment, make sure to apply Loctite 222 to the
45 ° stepped end of the Tie Rods that engage
the Coupling. See Figure 2.
Outlet Body Assembly
1. Install and seat Seal (
17
) [stem end first], Lantern
Ring (
18
) [stepped end first], Seal (
19
) [stem end
first], and Washer (
20
) into the bottom of Outlet Body
(
15
).
2. Secure the components with Retaining Ring (
21
).
• Make sure the Retaining Ring seats properly in the
groove.
Rod and Fluid Piston Assembly
17. Remove the Rod (with attached components) from the
Outlet Body.
18. Remove lower Nut (
27
) that secures Fluid Piston (
24
)
to the Rod.
NOTE
: Place an appropriate size punch or
other suitable tool into the hole of the Rod.
19. Remove Plate (
26
), Gasket (
25
), and the Fluid Piston
from the Rod.
20. Remove Retaining Ring (
23
) from the Rod as needed.
Outlet Body Assembly
21. Remove both O-Rings (
11
) from the Outlet Body.
22. Remove Retaining Ring (
21
), Washer (
20
), Seal (
19
),
Lantern Ring (
18
), and Seal (
17
) from the Outlet Body.
23. Unscrew Bushing (
16
) from the Outlet Body as
required.
Clean and Inspect
1. Clean all metal parts in cleaning solvent. The solvent
should be environmentally safe.
2. Inspect all parts for wear and/or damage.
• Replace as necessary.
3. Inspect Air Piston (
7
) and Fluid Piston (
24
) for fatigue
cracks.
• Replace as necessary.
4. Inspect Rod (
22
) closely. Use a magnifying glass to
detect any score marks on the Rod.
• Replace as necessary.
Item
No. Description
Item
No. Description
Clean Oil
9
O-Ring, 3/8 " ID x 1/2 " OD
19
Seal, 1/2 " ID x 7/8 " OD
11
O-Ring, 2-3/4 " ID x 3 " OD
30
O-Ring, 1-7/8 " ID x 2-1/8 " OD
17
Seal, 1/2 " ID x 3/4 " OD
34
O-Ring, 1-5/16 " ID x 1-11/16 " OD
Magnalube-G Teflon Grease
8
Quad-Ring, 2-5/8 " ID x 3 " OD
Coat the Inside Diameter of the Air Motor Assembly
Table 3 Lubricated Components