LOWER PUMP DISASSEMBLYLOWER PUMP REASSEMBLY
PAGE 4 OF 4 66243-X
PACKING OPTIONS AND SERVICE KITS
LOWER SERVICE UPPER PACKING MIDDLE PACKING LOWER PACKING
PUMP KIT 51 (X) ‘‘V”PACKING 52 (2) ‘‘V PKG 55 (X) ‘‘V”PKG 56(2) ‘‘V” PKG 59(4) ‘‘V” PKG 65 (1)‘‘U”
CUP
66243-XXX 637071- XXX PART# (QTY) [MT’L] PART # [MT’L] PART# (QTY) [MT’L] PART # [MT’L] PART # [MT’L] PART# [MT’L]
-11X-, - 15X -637071-G43, - G47 93454-1 (5) [L] 93455- 1 (4) [L] 93678- 1 [L]
-31X -, - 343,- 35X -637071-G43,- G47 93454-2 (5) [T] 93455 - 2 (4) [T] 90911 [T]
-51X -, - 55X -637071 - G43,- G47 93454-2 (3) [T] 93454- 1 [L] 93455-2 (4) [T] 90911 [T]
-C1X-,-C4X,-C5X-637071- C43, - C47 93454- 4 (5) [UH] 93455- 4 (4) [UH] 90911 [T]
-D1X-,-D5X-637071-G43,- G47 93454-4 (3) [UH] 93454- 1 [L] 93455-1 (4) [L] 93678-1 [L]
-Asof May 15, 1995 these models are no longer available. EXAMPLE: 66243-117 is replaced by 66243- G47 & service kit is 637071- G47.
Note: All threads are right hand.
1. Remove(6) pump body from (9) suction tube, by sliding it off three
(10) tie rods.
2. Remove (7) gasket from top of (9) suction tube.
3. Remove three (10) tie rods.
4. Pull(9) suction tube off the MIDDLE packing and valve section and
out of (25) adapter.
5. Push (26) plunger rod to expose the primer assembly.
6. Remove(33) nut, (32) valve plate and (31) washer from (30) primer
rod.
7. Pull (26) plunger rod and remove MIDDLE packing, valve section
and (30) rod from (15) chamber body.
8. Remove (7) gasket out of (25) adapter.
9. Withthe aid of a flat bladed screwdriver remove (25) adapter, (21)
valvebody, (22) valve seat and two (23) gaskets out of (15) cham-
ber body.Use the flat bladed screwdriver to pry on the slot on (25)
adapter.
10. Remove (24) ‘‘O” Ring from (25) adapter.
11. With retaining ring pliers, remove (37) retaining ring from (21) valve
body,then remove the packings out of (21) valve body.
12. Using provided wrench flats, remove (30) rod from (34) valve rod.
Again, using wrench flatsremove (34) valve rod from (26) plunger
rod.
CAUTION:DO NOT mar or damage surfaces of any of these rods.
13. Slide the MIDDLE packing assembly off (34) valve rod.
14. Clamp (34) valve seat in a vise and remove(36) valve seat nut, then
remove the MIDDLE packing assembly off (28) valve seat.
15. Remove (1) solvent cup from (6) pump body. Now remove UPPER
packing assembly out (6) pump body.
Note: All rubber goods and packings should be lubricated with a com-
patible lubricant prior to assembly.
1. Assemble(21) valve body with LOWER packings. Refer to Packing
Options Chart on page 2.
2. RetainLOWER packing assy. in (21) valve body with (37) retaining
ring.
3. Assemble(28) valve seat MIDDLE packings. Refer to Packing Op-
tions Chart on page 2.
4. Secure the MIDDLE packing assy.with (36) valve seat nut.
5. Slide(21) valve body with LOWER packings onto the end of (30) rod
opposite the wrench flats. Install (21) valve body with the beveled
end onto rod
6. Screw (30) rod into (34) valve body and tighten.
7. Place (24) ‘‘O” Ring on (25) adapter.
8. Slide(25) adapter onto the (34) valve body & (30) rod assy with the
wider diameter opening going on first & fit it over (21) body.
9. Slide (28) valve seat and MIDDLE packing assy over (34) valve
body.Be sure to place beveled end of (28) valve seat against bevel
of (34) valve body.
10. Screw (34) valve body into (26) plunger rod and tighten. Use
wrench flats.
11. Place one (23) gasket inside (15) chamber body, followed with (22)
valveseat with beveled side up. NOTE: If stringy or filled materi
alis being pumped, then reverse the (22) valve seat. Next place
second (23) brass gasket against top of (22) valve seat.
12. Place (26) plunger, (28) valve seat and MIDDLE packing assy along
with (30) rod & (25) adapter assy into (15) chamberbody with the
primerrod end going in first.Slide the (25) adapter into place in the
(15) chamber body.
13. Place (7) gasket in (25) adapter.
14. Lubricate the MIDDLE packing assy and the inside of (9) suction
tube.Carefully slide (9) suction tube over (26) plunger and MIDDLE
packing assy into (15) adapter.
15. Install three (10) tie rods.
16. Place (7) gasket on end of (9) suction tube. NOTE: Apply a small
amount of grease on gasket to help keep gasket in place.
17. Slide (6) pump body over (26) plunger rod onto (10) tie rods. Seat
the (9) suction tube into (6) pump body.
18. Assemble the UPPER packing onto the (26) plunger rod and slide
into (6) pump body.
19. Install (1) solvent cup and hand tighten.
20. Push (26) plunger rod to expose (30) rod at bottom of pump. Place
(31) washer, (32) plate with beveled edges away from pump and
(33) nut onto (30) rod. Tighten (33) nut.
21. Push (30) rod until rod is inside (15) chamber body. Tighten (1) sol-
vent cup.
PN97999 - 070