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LOWER PUMP DISASSEMBLY
LOWER PUMP REASSEMBLY
PAGE 4 OF 4
66266-X
PACKING OPTIONS AND SERVICE KITS
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UPPER PACKING MIDDLE PACKING LOWER PACKING
LOWER PUMP SVCE. KIT
51 (X) ‘‘V” PACKING 52 (2) ‘‘V PKG
55 (X) ‘‘V” PKG 59 (4) ‘‘V” PKG
65 (1)‘‘U” CUP
66266-XXX
637074-XXX
PART NO (QTY) [MT’L] PARTNO [MT’L] PARTNO (QTY) [MT’L] PARTNO [MT’L] PART NO [MT’L]
-113, - -153 -
637074-G43 93661-1 (5) [L] ------- -- 93662-1 (4) [L] 93678-1 [L] ------- --
-313, - -353 -
637074-343 93661-2 (5) [T] ------- --
93662-2
(4) [T]
-------
-- 90911 [T]
-513, - -553 -
637074-G43 93661-2 (3) [T] 93661-1 [L] 93662-2 (4) [T] ------- -- 90911 [T]
-C13, - -C53 -
637074-C43 93661-4 (5) [UH] ------- -- 93662-2 (4) [T] ------- -- 90911 [T]
-D13, - -D53-
637074-D43 93661-4 (3) [UH] 93661-1 [L] 93662-1 (4) [L] 93678-1 [L] ------- --
- After May 15, 1995 these models are n o longer avai lable. EXAMPLE: 66266-1 13 i s replaced by 66266-G43 & Ser vice kit i s 637074-G43.
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 tubeoff the MIDDLE packing andvalve 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. With the aid of a flat bladed screwdriver remove (25) adapter, (21)
valve body, (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 (14) adapter.
11. With retainingring 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 flats remove (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)valveseatin aviseand remove(36)valve seatnut,then
remove the MIDDLE packing assembly off (28) valve seat.
15. Remove (1)solvent cupfrom (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 bodywith LOWER packings.Refer to Packing
Options Chart on page 2.
2. Retain LOWER packing assy. in (21) valve body with (37)retaining
ring.
3. Assemble (28) valve seat MIDDLEpackings. Refer to PackingOp-
tions Chart on page 2.
4. Secure the MIDDLE packing assy. with (36) valve seat nut.
5. Slide(21)valvebodywithLOWERpackingsontotheendof(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) adapteronto the (34) valvebody & (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)
valve seat with beveled side up. NOTE: If stringy or filled materi
alisbeingpumped,then reversethe(22)valveseat.Nextplace
second (23) brass gasket against top of (22) valve seat.
12. Place(26)plunger ,(28)valveseatandMIDDLEpackingassyalong
with (30) rod & (25) adapter assy into (15) chamber body with the
primer rod 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 tubeover (26)plunger andMIDDLE
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) roduntil rod is inside (15) chamber body. Tighten (1) sol-
vent cup
.
PN 97999-057