Graco 309643B User Manual
Instructions
Stainless Steel Air
Motor Conversion Kits
Conversion Kit 246450
For 1040 Pumps
Conversion Kit 246451
For 1590 Pumps
Conversion Kit 246452
For 2150 Pumps
309643B
Model 246450 Model 246522
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2002, Graco Inc. is registered to I.S. EN ISO 9001
Model 246451
Installation
Installation
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The equipment stays pressurized until pressure is
manually relieved. To reduce the risk of serious injury
from pressurized fluid, accidental spray from the gun
or splashing fluid, follow this procedure whenever you:
• Are instructed to relieve pressure
• Stop pumping
• Check, clean, or service any system equipment
• Install or clean fluid nozzles
1. Shut off the air to the pump
2. Open the dispensing valve, if used
3. Open the fluid drain valve to relieve all fluid pressure, having a container ready to catch the drainage
Installation Tools Required
• Torque wrench
• 10 mm socket wrench (1040)
• 13 mm socket wrench (1590 & 2150)
• 15 mm socket wrench (metal fluid section)
• adjustable wrench (plastic fluid section)
• 19 mm open end wrench
• O-ring pick
List of Parts in Kit
• Stainless steel air motor, with stainless steel air
covers
Small PTFE o-ring - used with center shaft, Qty 2
•
• Large PTFE o-ring - used with seats if applicable
Q
ty 4
,
Record Pump Information
Before you install the new stainless steel conversion kit,
record the information from the existing pump in the box
below. Refer to this information when you need to purchase repair kits or file a warranty claim.
PART NO. SERIES MADE IN
MAX
GPM-
/MIN
Plate No.
290-045
Rev. C
MAX FLUID & AIR PSI-barWEIGHT LB - kg
• Thread locking compound (blue) - tube
• Lithium-based Grease - tube
2 309643B
Metal Fluid Section Pumps
Disassembly of Inlet and Outlet Manifolds
1. Relieve the pressure, see page 2. Disconnect all
hoses.
2. Remove the pump from its mounting.
Installation
Apply medium-strength (blue) Loctite or equivalent to
1
the threads, and torque to 120-150 in-lb (14-17 N.m).
2
Arrow (A) must point toward outlet manifold (103).
3
Beveled seating surface must face the ball (301).
4
Not used on some models.
3. Remove the bolts (106) holding the outlet manifold
(103) to the fluid covers (101). See F
IG
. 1.
4. Remove the o-rings (202, not used on some models), seats (201), and balls (301) from manifold
(103).
5. Turn the pump over and remove the inlet manifold
(102). Remove the o-rings (202, not used on some
models), seats (201), and balls (301) from fluid covers (101).
1040 Model Shown
106
103
301
201
202
101
A
1
3
4
2
301
201
3
202
4
102
106
1
F
. 1
IG
309643B 3
Installation
Disassembly of Fluid Covers
1. Remove the screws (106) holding the fluid covers
(101) to the air covers (23). Pull the fluid covers
(101) off the pump. See F
2. Loosen but do not remove the diaphragm shaft bolts
(107) on both ends.
IG
. 2.
3. Unscrew one bolt from diaphragm shaft (24) and
remove the o-ring (108), fluid side diaphragm plate
(105), PTFE diaphragm (403, used on PTFE mod-
els only), diaphragm (401), and air side diaphragm
plate (104). See F
IG
. 3
4. Pull the other diaphragm assembly and the diaphragm shaft (24) out of the center housing (1).
Hold the shaft flats with a open end wrench, and
remove the bolt (107) from the shaft. Disassemble
the remaining diaphragm assembly.
5. Clean and check all parts for wear or damage.
Replace parts as needed.
.
Apply medium-strength (blue) Loctite or equivalent to
1
the threads, and torque:
1040 models -120-150 in-lb (14-17 N.m.)
1590/2150 models - 190-220 in-lb (22-25 N.m.)
Arrow (A) must point toward air valve (B).
2
B
23
FIG. 2
107
101
A
106
2
1
4 309643B
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