Clean and inspect
1 Clean all metal parts in an environmentally
safe cleaning solvent.
2 Inspect all parts for wear and damage.
Replace as necessary.
3 Inspect piston rod (5) for score marks.
Replace as necessary.
4 Inspect bore of cylinder (17) for any score
marks. Replace as necessary.
5 Closely inspect mating surfaces on all
check valve components for any imperfec-
tions. Ensure a smooth and clean contact
is obtained when assembled.
Example: Place ball (20) into valve
body (21). Fill the valve body with solvent.
Make sure no leakage occurs.
Assembly
NOTE
Prior to assembly, certain components
require lubrication. Refer to Table 3,
page 9 for details.
Pump tube
Body
1 Install o-ring (10) onto body (11).
2 Install and seat male support ring (9)
(flat side first), packings (8) (concave side
first), and female back-up ring (7) (con-
cave side first) into body.
3 Install packing screw (6) into body until it
contacts packing group.
NOTE
Packing screw (6) will require
adjustment. Refer to section entitled
Bench test and operation, (page 12) for
details.
Lubricated components
Item
Description
Clean oil
8
Chevron packings
10
O-ring, 1
7
/
in ID × 2
8
13
Packing (rubber)
9
4 Install and seat gasket (16) into bottom
of body.
5 Clamp body in a soft-jaw vise.
Piston rod and seat
6 Install piston rod (5) into top of body. Use
care passing packings.
7 Install and seat washer (12),
packing (13), additional washer (12),
and ball (14) onto seat (15).
8 Apply threadlocker to seat and screw into
piston rod. Tighten securely.
Cylinder
9 Install bung adapter (18)
onto cylinder (17).
10 Screw cylinder into body. Use care
passing packing.
11 Do not tighten cylinder at this time.
Table 3
1
/
in (e)
8