Graco 210-208 Datasheet

308–043
Rev. F
Supersedes Rev. C
and PCN D
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INSTRUCTIONS-PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
Displacement Pump
1000 psi (70 bar, 7 MPa) Maximum Working Pressure
Model 210–208, Series F
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1990, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001

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Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup/Operation 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts
Drawing and Parts List 10. . . . . . . . . . . . . . . . . . . .
Technical Data 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Phone Numbers 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

This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.


EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury .
D This equipment is for professional use only .
D
Read all instruction manuals, tags, and labels before operating the equipment.
D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor .
D Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
D Check equipment daily . Repair or replace worn or damaged parts immediately .
D
Do not exceed the maximum working pressure stated on the equipment or in the T echnical Data
for your equipment. Do not exceed the maximum working pressure of the lowest rated component
in your system.
D 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.
D Handle hoses carefully . Do not use hoses to pull equipment.
D 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).
DW
ear hearing protection when operating this equipment.
D Do not lift pressurized equipment.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.

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
INJECTION HAZARD
Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely
serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also
cause serious injury .
D
Fluid injected into the skin might look like just a cut, but it is a serious injury . Get immediate medi -
cal attention.
D
Do not point the gun/valve at anyone or at any part of the body .
D
Do not put your hand or fingers over the spray tip/nozzle.
D Do not stop or deflect leaks with your hand, body , glove or rag.
D Do not “blow back” fluid; this is not an air spray system.
D Always have the tip guard and the trigger guard on the gun when spraying/dispensing.
D Be sure the gun trigger safety operates before spraying.
D Lock the gun trigger safety when you stop spraying/dispensing.
D Follow the Pressure Relief Procedure on page 5 if the spray tip/nozzle clogs and before clean -
ing, checking or servicing the equipment.
DT ighten all fluid connections before operating the equipment.
D Check the hoses, tubes, and couplings daily . Replace worn or damaged parts immediately.
Do not repair high pressure couplings; you must replace the entire hose.
D Fluid hoses must have spring guards on both ends, to help protect them from rupture caused by
kinks or bends near the couplings.
  
Moving parts can pinch or amputate your fingers.
D Keep clear of all moving parts when starting or operating the pump.
D Before checking or servicing the equipment, follow the Pressure Relief Procedure on page 5 to
prevent the equipment from starting unexpectedly
.

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
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and
result in a fire or explosion and serious injury
.
D
Ground the equipment and the object being sprayed. Refer to Grounding on page 5.
D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing immediately . Do not use the equipment until you identify and correct the problem.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
D Keep the spray/dispense area free of debris, including solvent, rags, and gasoline.
D Before operating this equipment, electrically disconnect all equipment in the spray/dispense area.
D Before operating this equipment, extinguish all open flames or pilot lights in the spray/dispense
area.
D
Do not smoke in the spray/dispense area.
D Do not turn on or of f any light switch in the spray/dispense area while operating or if fumes are
present.
D
Do not operate a gasoline engine in the spray/dispense area.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
D Know the specific hazards of the fluid you are using.
D Store hazardous fluid in an approved container . Dispose of hazardous fluid according to all local,
state and national guidelines.
D Always wear protective eyewear , gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer .

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Setup/Operation
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 4.
1. Pump: Ground the complete pump as indicated in
your separate pump instruction manual.
2. Air hoses: use only electrically conductive air
hoses
3. Fluid hoses: use only electrically conductive fluid
hoses.
4.
Air compressor or hydraulic power supply: follow
manufacturer’ s recommendations.
5. Spray gun or dispensing valve: ground 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. Solvent pails used when flushing: follow your local
code. Use only metal pails, which are conductive,
placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continu -
ity.
9.
T o maintain grounding continuity when flushing or
relieving pressure , hold a metal part of the spray
gun firmly to the side of a grounded metal pail,
then trigger the gun.
Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally . Fluid
under high pressure can be injected through the
skin and cause serious injury . T o reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
D are instructed to relieve the pressure,
D stop spraying/dispensing,
D check or service any of the system equipment,
D or install or clean the spray tips/nozzles.
1. Lock the spray gun/dispensing valve safety latch.
2. Shut of f the air or hydraulic supply to the pump.
3. In air-powered systems, close the bleed-type
master air valve (required in your system). In
hydraulic-powered systems, close the hydraulic
supply line valve first, then the return line valve.
4. Unlock the gun/valve trigger safety .
5.
Hold a metal part of the gun/valve firmly to the side
of a grounded metal pail, and trigger the gun/valve
to relieve pressure.
6. Lock the gun/valve trigger safety latch.
7. Open the 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/dispense 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 . Now clear
the tip or hose.

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Service
Notes
D Repair Kit 223–439 is available to service the
pump. For the best results, use all the kit parts.
Parts included in the kit are marked with an asterisk
in the text, for example (15*).
D If possible, have all the necessary replacement
parts available before you begin the repair, to
reduce down time.
D When replacing the displacement rod (36) or the
cylinder (38), always replace all of the pump pack -
ings, seals, and glands, to ensure proper sealing.
Disconnecting the Displacement Pump
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
1. Solvent flush the pump if possible. Then, relieve
the pressure .
2.
Disconnect the hoses from the pump. Remove the
pump from its mounting and clamp it in a vise.
3. Disconnect the displacement pump from the motor
as explained in your separate pump manual.
Intake V alve (Fig. 1)
1. Remove the hex nuts (13) and washers (14) from
the tie rods (32). Unscrew the tie rods from the
intake valve (42). Remove the intake valve from
the pump.
2. Disassemble the intake valve. Take note of which
set of holes the ball stop pin (28) is in.
3. Clean all parts thoroughly , and inspect them for
wear or damage. Replace parts as needed.
4. Reassemble the valve. Place the ball stop pin (28)
in the same holes from which it was removed. If
you want to change the fluid flow through the
pump, place the pin in a dif
ferent set of holes.
Refer to Check V alve Adjustment.
5. If no further service is needed, reinstall the intake
valve on the pump. T orque the hex nuts (13)
evenly to 50–60 ft-lb (68–81 N S m), using a criss-
cross tightening pattern.
Piston (Fig. 1)
1. Remove the intake valve as explained in Intake
Valve.
2.
Pull the cylinder (38) down, off the piston assem -
bly.
3.
Unscrew the piston retainer screws (25). Remove
the piston parts from the displacement rod (36).
4. Clean all parts thoroughly , and inspect them for
wear or damage. Replace parts as needed.
5. Place the gasket (49) and ball (16) on the piston
retainer (43). Install these parts in the displace -
ment rod.
NOTE: The piston retainer (43) must not obstruct the
ports in the displacement rod (36).
6. Install one cup packing (31*) on the displacement
rod (36). Be sure the lips of the packing face up.
7. Install the packing spacer (30). Position one cup
packing (31*) on the displacement rod so the lips
of the packing face down.
8. Install the piston guide (35). Install the four screws
(25) through the piston assembly and screw them
into the displacement rod (36). T orque the screws
evenly to 30–40 ft-lb (41–54 N
S m), using a criss-
cross tightening pattern.
9. If no further service is needed, go to Throat Pack -
ings.
If no further service is needed, slide the
cylinder (38) and gaskets (24*) over the piston
assembly . Install the intake valve. T orque the nuts
(13) evenly to 50–60 ft-lb (68–81 N
Sm).

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Service
Fig. 1
4
2
3
1
5
06644
13
14
41
36
Lower Holes
1
1
28
*15 42
18**
38
32
24*
39
23
T orque to 50–60 ft-lb (68–81 N Sm)
T
ighten in a criss-cross pattern
THROAT
PISTON
39
47
*46
*44
41
45*
4
4
Lips of V -packings must face down
36
*15
28
†16
49
43
*31
30
*31
35
25
53
T orque to 30–40 ft-lb (41–54 N Sm)

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Service
Throat Packings (Fig. 1)
1. Remove the intake valve and the cylinder (38) as
explained in the previous sections.
2. Remove the packing nut/wet-cup (39).
3. Pull the displacement rod (36) out of the bottom of
the outlet housing (41).
4. Remove the throat packings and glands from the
outlet housing.
5. Clean all parts thoroughly , and inspect them for
wear or damage. Replace parts as needed.
NOTE: Always replace the male gland (44) and the
bearing (47) when the throat packings are replaced.
6. Install the throat packings into the outlet
housing (41) one at a time in the following order ,
with the lips of the v-packings facing down:
the male gland (44*), two UHMWPE v-packings
(45*), one leather v-packing (46*), one UHMWPE
v-packing (45*), one leather v-packing (46*), one
UHMWPE v-packing (45*), and the bearing (47).
Loosely install the packing nut/wet-cup (39).
7. Push the displacement rod (36) up into the outlet
housing (41) until it protrudes from the packing
nut/wet-cup (39). Continue reassembling the pump
in the reverse order of disassembly
. T ighten the
packing nut/wet-cup just tight enough to prevent
leakage.
Reconnecting the Displacement Pump
1. Reinstall the displacement pump on the motor as
explained in your separate pump manual.
2. Reconnect the ground wire to the motor .
Check V alve Adjustment
The fluid piston and intake valves are factory-set for
high-volume pumping of heavy , spray-viscosity fluids.
For lighter fluids or lower volume requirements, or to
reduce surging at the stroke change-over , decrease
the travel of the balls (16 and 18). Move the pins (28)
to a lower set of holes. See Fig. 1 and refer to the
pump disassembly procedure above.
NOTE: If the ball travel is too short for the fluid being
pumped, the fluid flow will be restricted.
For heavier fluids or to increase the flow, increase the
travel of the balls (16 and 18). Move the pins (28) to a
higher set of holes. See Fig. 1 and refer to your pump
disassembly procedure above.

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Notes

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Parts
06645
36
15
28
*24
38
32
†18
42
28
15*
24*
25
35
31*
30
31*
43
49
16†
39
†47
*45
*46
44*
13
14 41
32