Graco President 210007 Operation manual

Instructions – Parts List
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 1974, Graco Inc. is registered to I.S. EN ISO 9001
PresidentAir Motor
For Water Reducible Fluid Pump
180 psi (1.2 MPa, 12 bar) Maximum Working Pressure
Part No. 210007, Series F
For STANCHION TUBE mounting
307157 rev.L
06714
Important Safety instructions
Read all warnings and instructions in this manual.
Save these instructions.

2 307157
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
This equipment is for professional use only.
Read all instruction manuals, tags, and labels before operating the equipment.
Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
Do not alter or modify this equipment.
Check equipment daily. Repair or replace worn or damaged parts immediately.
Do not exceed the maximum working pressure stated on the equipment or in the Technical Data
for your equipment. Do not exceed the maximum working pressure of the lowest rated component
in your system.
Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
Handle hoses carefully. Do not pull on hoses to move equipment.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 66C (150F) or below –40C (–40F).
Comply with all applicable local, state, and national fire, electrical, and safety regulations.

3307157
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and re-
sult in a fire or explosion and serious injury.
Ground the equipment and the object being sprayed. Refer to Grounding on page 4.
If there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing/dispensing immediately. Do not use the equipment until you identify and correct the problem.
Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed/dispensed.
Keep the spray/dispense area free of debris, including solvent, rags, and gasoline.
Before operating this equipment, electrically disconnect all equipment in the spray/dispense area.
Before operating this equipment, extinguish all open flames or pilot lights in the spray/dispense
area.
Do not smoke in the spray/dispense area.
Do not turn on or off any light switch in the spray/dispense area while spraying/dispensing or while
operating if fumes are present.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers.
Keep clear of all moving parts when starting or operating the pump.
Before checking or servicing the equipment, follow the Pressure Relief Procedure on page 5 to
prevent the equipment from starting unexpectedly.

4 307157
Installation
General Information
NOTE: Reference numbers and letters in parentheses
in the text refer to the callouts in the figures and the
parts drawing.
NOTE: Always use Genuine Graco Parts and Acces-
sories, available from your Graco distributor.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE OR EXPLOSION HAZ-
ARD on page 3.
1. Pump: Use a ground wire and clamp as instructed
below.
2. Air hoses: Use only grounded air hoses.
3. Fluid hoses: Use only grounded fluid hoses.
4. Air compressor: Follow manufacturer’s recommen-
dation.
5. Spray gun or dispensing valve: Grounding is
obtained through connection to a properly
grounded fluid hose and pump.
6. Fluid supply container: Follow your local code.
7. Object being sprayed: Follow your local code.
8. All solvent pails used when flushing: Follow your
local code. Use only metal pails, which are con-
ductive, placed on a grounded surface. Do not
place the pail on a non-conductive surface, such
as paper or cardboard, which interrupts the
grounding continuity.
9. To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
gun/valve, firmly to side of a grounded metal pail,
then trigger the gun/valve.
To ground the air motor; loosen the grounding lug
locknut (W) and washer (X). Insert one end of a 12 ga
(1.5 mm) minimum ground wire (Z) into the slot in
lug (Y) and tighten the locknut securely. See Fig. 1.
Connect the other end of the wire to a true earth
ground. Always check your local code. Order Part No.
222011 Ground Wire and Clamp.
Fig. 1
02464
YZ
WX

5307157
Service
Pressure Relief Procedure
WARNING
SKIN INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause seri-
ous injury. High –pressure fluid from
gun, hose leaks, or ruptured components will
pierce skin. This may look like just a cut, but it is a
serious injury that can result in amputation. Get
immediate surgical treatment. To reduce the risk
of an injury from injection, splashing fluid, or mov-
ing parts, follow the Pressure Relief Procedure
whenever you:
are instructed to relieve the pressure,
stop spraying/dispensing,
check or service any of the system equipment,
or install or clean the spray tips.
1. Engage the spray gun safety latch.
2. Turn off the air to the motor.
3. Close the bleed-type master air valve (required in
your system).
4. Disengage the gun or dispensing valve safety
latch.
5. Hold a metal part of the gun firmly to a grounded
metal waste container, and trigger to relieve the
fluid pressure.
6. Engage the safety latch.
7. Open the pump drain valve (required in your
system), having a container ready to catch the
drainage.
8. Leave the drain valve open until you are ready to
spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
tip guard retaining nut or hose end coupling and relieve
pressure gradually, then loosen completely. Then clear
the tip or hose.
WARNING
A bleed-type master air valve is required in your
system, to reduce the risk of serious injury includ-
ing injury from moving parts if you are adjusting or
repairing the air motor.
The bleed-type master air valve relieves air trapped
between this valve and the motor after the air
regulator is shut off. Trapped air can cause the
motor and pump to cycle unexpectedly. Mount the
valve close to the pump, downstream from the air
regulator.
WARNING
Never operate the pump with the air motor plates
removed. The piston in the air motor, located
behind the air motor plates, moves when air is
supplied to the motor. Moving parts can pinch or
amputate your fingers or other body parts.
Restarting a Stalled Motor
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
CAUTION
Never exceed 180 psi (12 bar, 1.2 MPa) air supply
pressure to the air motor. Exceeding this pressure
may cause the air motor to stall with the air transfer
valves stuck at mid position, making the air motor
inoperative.
To reseat the air transfer valves and restart a stalled
motor, relieve the air supply pressure to the motor by
closing the bleed-type master air valve. If the air
transfer valves fail to reseat, screw the cap nut (24)
out of the cylinder (22), pull up on the trip rod (30) and
screw the cap nut back into the cylinder. See Fig. 2.
Be sure the air supply pressure is less than 180 psi (12
bar, 1.2 MPa) before opening the bleed-type master air
valve.

6 307157
Service
Servicing the Air Motor
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
Relieve the pressure, then disconnect the air hose
from the motor.
Manually push on the piston rod to move the piston to
the top of its stroke. Screw the cap nut (24) out of the
cylinder (22). Pull up on the cap nut, grip the trip
rod (30) with padded pliers (F) and screw the cap nut
off of the trip rod. See FIg. 2.
CAUTION
Do not damage the plated surface of the trip rod.
Special pliers, Part No. 207579 is available. Damag-
ing the surface of the trip rod can result in erratic air
motor operation.
Remove the six screws (5) holding the cylinder (23) to
the base (29) and carefully pull the cylinder straight up
off of the piston. See Fig. 2.
CAUTION
To prevent damaging the cylinder wall, always lift the
cylinder straight up off of the piston. Never tilt the
cylinder as it is being removed. Fig. 2
06715
24
29
30
22
5

7307157
Service
WARNING
Always keep your fingers clear of the toggle as-
semblies (E) to avoid pinching or amputating them.
Use a screwdriver to push down on the trip rod
yoke (10), and snap the toggle assemblies (E) down.
Remove the lockwires (18) and upper adjusting
nuts (17) from the air transfer valves (G). Screw the
valve stems (20) out of the grommets (13), and lower
adjusting nuts (17). Remove the valve poppets (27)
from the valve stems, and inspect them for cracks.
See Fig. 3.
Grip the toggle rocker (12) with pliers, compress the
spring (25), swing the toggle assembly (E) up and
away from the piston lugs (H), and remove the parts.
See Fig. 3. Inspect the valve actuator (9) to be sure it
is supported by the spring clips (33) but slides into
them easily. Remove the trip rod yoke (10), valve
actuator (9), and the trip rod (30). Check the exhaust
valve poppets (28) for cracks. Pull the piston (34) up
out of the base (29), and inspect the o-ring (16) in the
base casting.
NOTE: To remove the exhaust valve poppets (28),
stretch them out and cut them with a sharp knife.
Clean all parts thoroughly and inspect for wear or
damage. Replace parts as necessary. Inspect the
polished surfaces of the piston, piston rod and cylinder
walls for scratches or wear. Lubricate all parts with a
light waterproof grease. Be sure the o-rings are in
place, slide the piston rod down through the throat
bearing and the lower piston (34) into the base (29).
Pull the exhaust valve poppets (28) into the valve
actuator (9), and clip off the top part shown with dotted
lines. See Fig. 3. Install the valve poppets (27) on the
valve stems (20), and reassemble the valve stems
(20), grommets (13), adjusting nuts (17), trip rod (30),
valve actuator (9), trip rod yoke (10) and toggle assem-
blies (E) on the piston (34). See Fig. 3.
Adjust the valve stems (20) so there is a 0.145 in.
(3.68 mm) clearance between the valve poppets (27)
and the piston (34) when the toggle assemblies are in
the down position. See Fig. 3. Special gauge, Part No.
171818, is available. Contact your Graco distributor.
Be sure the toggle assemblies (E)are in the up position
and then reinstall the cylinder (22) and the cap nut
(24). Reassemble the air motor to the displacement
pump. Before mounting the pump, connect an air
hose to the air motor, and run the pump to be sure it
operates smoothly.
WARNING
Never operate the pump with the air motor plates
(25, 37) removed. The piston in the air motor,
located behind the air motor plates moves when air
is supplied to the motr. Moving parts can pinch or
amputate you fingers or other body parts.
Fig. 3
04422
06726
30 10 H 18
17
E
34
29
25
12
0.145”
(3.68 mm)
G
27
34
933
30
28 20 17 13
17
21

8 307157
Parts
06725
24
8
22
10
18†
17†
9
19
25
12
11
30
28†
13†
15
32
33
34
31
27†
20†
6
21
3
14
†16
4
1
5
39
38
37
2
29
36 35
23 26
1Lips Face Down
1

9307157
Parts
Ref
No. Part No. Description Qty
1 114422 SCREW, phillips hd mach;
no. 8–32 x 0.375” 20
2* 101524 SEAL, wiper; leather 1
3 101525 RING, retainer 1
4 101526 BEARING, bronze 1
5 101578 SCREW, hex hd nylock;
0.312”–18 x 0.875” 8
6 150647 GASKET, copper 1
8* 156698 SEAL, o-ring, nitrile rubber 1
9 158359 ACTUATOR, valve 1
10 158360 YOKE, trip rod 1
11 158362 PIN, toggle 2
12 158364 ROCKER, toggle 2
13† 158367 GROMMET, rubber 2
14 158377 SEAL, flat ring; nitrile rubber 1
15† 158378 SEAL, o-ring; nitrile rubber 1
16† 158379 SEAL, o-ring; nitrile rubber 1
17† 160261 NUT, adjusting 4
18† 160618 LOCKWIRE, transfer valve 2
19 160623 ARM, toggle 2
20† 160896 STEM, air valve 2
21 162628 ROD, piston 1
22 162629 CYLINDER 1
23 178270 PLATE, muffler 1
24 164704 NUT, cap 1
25 167585 SPRING, compression 2
26 177844 PLATE, identification 1
27† 170708 POPPET, valve; polyurethane 2
28† 170709 POPPET, valve; polyurethane 2
29 171227 BASE 1
Ref
No. Part No. Description Qty
30 207150 TRIP ROD 1
31 207391 PISTON ASSY; Includes items 32–34
(also includes Repair Kit 207305 when
ordered as a replacement part 1
32 102975 . SCREW, rd hd mach;
No. 6–21 x 0.25” 2
33* 158361 . CLIP, spring 2
34 . PISTON, bare (not sold separately) 1
35 104029 LUG, grounding 1
36 104582 WASHER, tab 1
37 180233 LABEL, warning 2
38177841 PLATE, warning 1
39 178269 PLATE, muffler 1
 If you have painters who do not read English, order one
of the following labels to apply to your air motor. Apply the
labels over the matching artwork on the air motor plate for
good visibility. DO NOT cover the air exhaust holes.
Order the labels directly from Graco, free of charge. Toll Free:
1–800–367–4023
German: 290464
French: 290463
Spanish: 290465
* Recommended Tool Box spare parts. Keep these spare
parts on hand to reduce down time.
† Supplied in Repair Kit 207385

10 307157
Mounting Hole
Layout
06718
161322
GASKET
Three 0.34” (8.6 mm)
Diameter Holes on
6.38” (162.1 mm)
Bolt Circle
4” (102 mm)
2.5”
(64 mm)
45
4545
1”
(25 mm)
Radius
Dimensions
06724
15.75”
(400.1 mm)
7.25”
(146.1 mm ) DIA
1” npt
Fluid Return
3/4” npt
Fluid Outlet
Technical Data
Max. inbound air pressure 180 psi (12 bar, 1.2 MPa). .
Effective piston area 14 in(90 cm). . . . . . . . . . . . . . . .
Effective piston diameter 4.5” (114 mm). . . . . . . . . . . . .
Stroke 4” (102 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air valves Urethane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve mechanism Balanced detented. . . . . . . . . . . . . .
Weight 19 lb (8.6 kg) approx.. . . . . . . . . . . . . . . . . . . . . .