JABSCO 31595-009 Manual Download Page 3

Page: 3 / 5

www.PumpAgents.com

Upper Housing XXXXX-0092

Upper Housing

XXXXX-0094

Upper Housing

XXXXX-0292

Upper Housing

XXXXX-0294

Valve Kit
Diaphragm Kit
Lower Housing Kit
Pressure Switch XXXXX-0092

Pressure Switch

XXXXX-0094

Pressure Switch

XXXXX-0292

Pressure Switch

XXXXX-0294

Service Kit
Motor Kit – 12V EMC COMP

24V EMC COMP

Slide Clips
Pumphead Assy. XXXXX-0092

Pumphead Assy.

XXXXX-0094

Pumphead Assy.

XXXXX-0292

Pumphead Assy.

XXXXX-0294

DISASSEMBLE

Pressure Switch (5)

1. Disconnect power to pump and open a faucet or valve to relieve

system pressure.

2. Remove Rubber Boot, then remove the two visible Pressure

Switch Screws located on each side of the Pressure Switch (5).

Upper Housing (1)

3. Slide Port Clip (8) back and unplug from Tank Plumbing.
4. Loosen but DO NOT remove the four Pump Head Screws and

carefully remove Upper Housing Assembly (1).

5. Remove Check Valve (2) and inspect for debris.

Check Valve Assembly (2) Follow Steps 1, 3 & 4

6. Inspect Check Valve (2) and O-Ring

Lower Housing (4) Follow Step 1, 3 & 4

7. Remove Rubber Plugs on housing (4-A) to access Allen Screw.
8. Rotate Lower Housing (4), so access notch is aligned with Cam

Bearing Set Screw (4-C), loosen set screw with a 1/8" Allen
Wrench and slide pump head off motor shaft.

Diaphragm (3-B)

9. Loosen four cam piston screws with Phillips head screw driver

and pull apart cam (4-B) from Inner Pistons (3-A). (Both pistons
(3-A & C) should be replaced when a new Diaphragm (3-B) is
installed.)

Motor (7) Follow steps 1, 3, 4, 7, & 8

REASSEMBLE

Diaphragm (3-B)
1. Insert Outer Pistons (3-C) into Lower Housing (4-A) by bending pistons

at center fold.

2. Placing the Diaphragm (3-B) (flatter side of Diaphragm facing the

motor) on the Lower housing (4-A). Press each Inner Piston (3-A)
through the Diaphragm and Lower Housing (4A) into Outer Piston
(3-C). Hex stem of Inner Pistons (3-A) must be aligned into hex holes
in Outer Pistons (3-C). Tighten cam piston screws partially, center pis-
ton in diaphragm, and tighten screws securely (18 in. lbs. torque).
Also, the Outer Pistons (3-C) must be aligned with alignment slots on
Cam Assembly (4-B) making sure screw holes align in cam assembly,
otherwise diaphragm will leak.

Cam Bearing (4-B)
3. Place Cam Bearing (4-B) over Inner Pistons (3-C) and tighten

down with four Phillips Head Screws. (18 in. lbs. torque)

Lower Housing (4) to Motor (7)
Coat motor shaft with grease prior to installing Cam Bearing (4-B).
4. When installing the Lower Housing (4), rotate access notch to align

with Cam Bearing Set Screw (4-C).

5. Attach Cam Bearing (4-B) to motor shaft indentation with Cam Bearing

Set Screw (4-C). (35 in. lbs. torque)

6. Reinsert new Notch Plugs.
Check Valve (2)
7. Place Ferrules (Rubber Cones) in the Upper Housing (1) coned side

first.

8. Properly seat O-Ring in Check Valve (2) and insert Check Valve (2) into

the Upper Housing (1).

Upper Housing (1)
9. Place Upper Housing (1) on top of the Lower Housing (4-A) and tighten

Hex Bolts (30 in. lbs. torque) through the Upper Housing (1) to the Motor.

KEY

DESCRIPTION

2
3
4
5

8
9

QTY

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

18910-4040
18910-4040
18910-4025
18910-4025
18911-7030
18912-3040
18915-9000
18916-0040
18916-0040
18916-0025
18916-0025
18920-9042
18919-0134
18919-1055
30648-1000
18914-6240
18914-6240
18914-6225
18914-6225

31595-SERIES

18910-4040
18910-4040
18910-4025
18910-4025
18911-7030
18912-3040
18915-9002
18916-0040
18916-0040
18916-0025
18916-0025
18920-9043
18919-0131
18919-1052
30648-1000
18914-6340
18914-6340
18914-6325
18914-6325

31600-SERIES

18910-4040
18910-4040
18910-4025
18910-4025
18911-7030
18912-3040
18915-9002
18916-0040
18916-0040
18916-0025
18916-0025
18920-9043
18919-0132
18919-1053
30648-1000
18914-6340
18914-6340
18914-6325
18914-6325