Reciprocator Repair
3A3005C
17
13. Visually inspect the spring (21). If there is wear or
damage, remove nut (18), spring (21) and retainers
(20) from the trip rod (12) (F
. 22).
Reassembly
NOTE:
•
Use a surface cleaner such as chlorinated sol-
vent on the threads of all parts that are being
reused for reassembly. Blow part with com-
pressed air.
•
Use a 1/4-28 UNF-2A tap to remove adhesive
from internal threads of yoke (9).
•
Thread sealer and primer are required. See
Reciprocator Repair Notes, page 15 for specifi-
cation.
•
Loctite
®
609 is used only in Step 3 of this proce-
dure.
1.
If needed, install a new spring over trip rod as fol-
lows (F
. 23):
•
one retainer (20),
•
new spring (21),
•
second retainer (20).
2.
Thread nut (18) onto rod until it runs out of thread so
that it bottoms out on the rod’s shoulder (F
. 23).
3.
If valve yoke (9) was removed from trip rod (12)
during the disassembly procedure, apply Loctite
®
609 thread sealant to first two or three internal
threads of yolk (9).
4.
Apply Primer to external threads of trip rod (12).
Allow Primer 3-4 minutes to dry. Install trip rod to
yoke (9). Torque to 54-56 in.-lbs (6.1 to 6.3 N.m).
Remove excess sealant.
5.
Apply Loctite
®
242 or Perma-Loc 115 thread sealant
to first two to three threads of valve assembly (31).
6.
If capscrews (51) were removed during the disas-
sembly procedure, apply thread sealant to the first
two or three internal threads of valve stop (26) (F
7.
Apply Primer to external threads of valve sleeve
(29). Allow Primer 3-4 minutes to dry. Install cap
screws (51). Torque to 42-45 in.-lbs (4 to 5 N.m).
Remove excess sealant.
8.
Remove o-ring (13) from bottom of cylinder cap (31)
and replace it with a new o-ring.
F
IG
. 22
18
20
21
20
12
F
IG
. 23
NOTICE
In order to ensure a tight and secure seal, allow 24
hours for sealant applied in Steps 3 and 5 to cure
before operating reciprocator.
18
20
21
20
