INSTRUCTIONS-PARTS LIST
307–655
Rev. D
This manual contains important
warnings and information.
Supersedes Rev. C
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
Airless Mastic Pole Gun
3600 psi (252 bar) Maximum Working Pressure
Model 218–688, Series A
Spray tip not included; order it separately
.
See page 7.
Table of Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
4
6
7
8
Technical Data
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Graco Phone Number . . . . . . . . . . . . . . . . . . . . . . . . . 12
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
.
6300
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1985, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result
INSTRUCTIONS
in serious injury
.
D
D
D
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 uncertain about usage, call your Graco
distributor.
D
D
D
Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
Check the equipment daily. Repair or replace worn or damaged parts immediately
.
Do not exceed the maximum working pressure of the lowest rated system component. This equip
-
ment has a 3600 psi (252 bar) maximum working pressure
.
D
Route the hoses away from the traffic areas, sharp edges, moving parts, and hot surfaces. Do not
expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).
Do not use the hoses to pull the equipment.
D
D
Use only Graco approved hoses. Do not remove hose spring guards, which help protect the hose
from rupture caused by kinks or bends near the couplings.
D
Use fluids or solvents that are compatible with the equipment wetted parts. See the Technical
Data section of all the equipment manuals. Read the fluid and solvent manufacturer
’s warnings.
D
Comply with all applicable local, state and national fire, electrical and other safety regulations.
TOXIC FLUID HAZARD
Hazardous fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the
skin, swallowed, or inhaled.
D
D
Know the specific hazards of the fluid you are using. Read the fluid manufacturer’s warnings.
Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
D Wear the appropriate protective clothing, gloves, eyewear and respirator
.
RECOIL HAZARD
Due to the very high pressure fluid emitted, a strong recoil action will occur when you open the ON/
OFF lever on the gun. If you are unprepared, your hand could be forced back toward your body or you
could lose your balance and fall, resulting in serious injury
.
307-655
3
Installation
5
9
3
7
1
16
A
17
06301
Fig.
1
Reference numbers and letters in parentheses in the
text refer to the callouts in the figure drawings and the
parts drawing.
1. Install a bleed-type master air valve on the pump
air supply line, downstream of the pump air regula
tor, to shut off air to the pump.
-
2. Install a fluid filter and fluid drain valve close to the
pump’s fluid outlet. The fluid drain valve assists in
relieving fluid pressure in the displacement pump,
hose, and gun.
WARNING
INJECTION HAZARD
T
o reduce the risk of property damage or
serious injury, including fluid injection,
which could be caused by component
rupture or unrelieved fluid pressure,
3. Install a fluid pressure regulator to control fluid
pressure to the gun.
D
A fluid drain valve is required in your system to
4. Install a fluid shutoff valve to shut off the fluid
supply to the gun.
assist in relieving fluid pressure in the displace
ment pump, hose and gun; triggering the gun to
relieve pressure may not be sufficient.
-
5. Connect a grounded fluid hose to the gun fluid
inlet.
D
The bleed-type master air valve is required in
your system to relieve air trapped between this
valve and the pump after the air regulator is
closed. Trapped air can cause the pump to
6. Without the tip installed, start the pump or sprayer
and flush it according to the pump or sprayer
instructions. Prime the pump or sprayer with the
cycle unexpectedly, which could result in seri
-
ous injury
.
fluid you are going to spray
.
Continued on the next page.
4
307-655
Installation
7. Follow the Pressure Relief Procedure on
The following grounding instructions are minimum
requirements for a system. Your system may include
other equipment or objects which must be grounded.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment. Your
system must be connected to a true earth ground.
page 6.
8. Engage the gun safety ring (20), see Fig. 2,
page 6.
1. Pump/Sprayer: Ground the pump/sprayer by
9. Unscrew the tip guard (17) and install the spray tip
(A) and gasket (16) in the tip guard nut. See Fig. 1,
page 4.
connecting a ground wire and clamp between the
pump/sprayer and a true earth ground as in
-
structed in the equipment’s instruction manual.
2. Air compressor: Ground according to the
NOTE: The gun will leak if the tip gasket (16) is not
installed.
manufacturer recommendations.
3. Air and fluid hoses: Use only grounded hoses
with a maximum of 500 feet (150 m) combined
hose length to ensure grounding continuity. Check
the electrical resistance of your air and fluid hoses
at least once a week. If the resistance exceeds the
10. Disconnect the harness (7) clip from the gun
ring (5).
11. Place the harness (7) over one shoulder and
across the chest. Fasten the belt around the waist.
Adjust the length of the shoulder strap as needed.
recommended limits, replace the hose immedi
ately.
-
4. Pole gun: Ground the gun by connecting it to a
properly grounded fluid hose and pump.
12. Check that the handle grip (9) is in a comfortable
position. To adjust it, loosen the screw (3) and nut
(1), rotate the grip to a good position, and firmly
tighten the screw and nut.
5. Fluid supply container: Ground it according to
local code.
6. Object being sprayed: Ground it according to
local code.
Ground the System
7. All solvent pails used when flushing: Ground
them according to local code. Use only metal pails,
which are conductive. Do not place the pail on a
WARNING
non-conductive surface, such as paper or card
-
FIRE AND EXPLOSION HAZARD
Improper grounding could cause static
sparking, which could cause a fire or
explosion. To reduce the risk of property
damage or serious injury, follow the
board, which interrupts the grounding continuity
.
8. To maintain grounding continuity when flush-
ing or relieving pressure: Always hold a metal
part of the gun firmly to the side of a grounded
metal pail, then trigger the gun.
grounding instructions below
.
307-655
5
Operation
Safety
Pressure Relief Procedure
WARNING
INJECTION HAZARD
Remember, this is not an air spray gun.
For your safety be sure to read and
follow the Warnings on pages 2 and 3
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. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
and throughout the text of this instruction manual.
Keep the wallet sized warning card 179–960,
provided with the gun, with the operator of this
equipment at all times. The card contains important
treatment information should an injection injury
occur. Additional cards are available at no charge
from Graco.
D
D
D
D
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tip.
Opening and Closing the ON/OFF Lever
Always fully open or fully close the ON/OFF lever (B).
Any other position will quickly damage the valve seat,
and the ON/OFF ball valve (8) may not completely
stop the flow of fluid when closed.
1. Fully close the gun ON/OFF lever (B). See Fig. 2.
T
o open the ON/OFF lever (B), slide the safety ring
2. Slide the safety ring (20) over the gun ON/OFF
lever.
(20) off the lever and pull the lever completely back,
toward yourself. See Fig. 2.
3. Close the pump air regulator
.
To close the ON/OFF lever (B), push the lever com
-
pletely forward, toward the spray tip, and slide the
safety ring (20) over the lever. See Fig. 2.
4. Close the bleed-type master air valve (required in
the system).
1
B
5. Slide the safety ring off the gun ON/OFF lever
.
6. Hold a metal part of the gun firmly to the side of a
grounded metal waste container and open the gun
ON/OFF lever to relieve the fluid pressure.
8
7. Fully close the gun ON/OFF lever, and slide the
safety ring over the lever
.
20
8. Open the pump drain valve (required in the sys
-
tem) to help relieve fluid pressure in the displace
-
ment pump. Triggering the gun to relieve pressure
may not be sufficient. Have a container ready to
catch the drainage.
9. Leave the drain valve open until you are ready to
spray again.
2
B
10. If you suspect that the spray tip or hose is com
-
pletely clogged or that pressure has not been fully
relieved after following the steps above, very
slowly loosen the hose end coupling and relieve
pressure gradually, then loosen the coupling
completely. Now clear the tip or hose obstruction.
1
ON/OFF lever in open position.
2
ON/OFF lever in closed position.
06302
Fig. 2
6
307-655
Operation
Spraying
CAUTION
WARNING
T
o reduce the risk of damage to the tip guard, never
hang the gun by the tip guard. Any damage to the
sharp edges of the openings in the tip guard will
cause paint to collect at that area.
RECOIL HAZARD
Due to the very high pressure fluid
emitted, a strong recoil action will occur
when you open the ON/OFF lever on
Spray Tip Selection Chart
this gun. If you are unprepared, your hand could be
forced back toward your body or you could lose
your balance and fall, resulting in serious injury
.
Orifice
Size
Tip
Fan Pattern at Part No. Use Tip
Grasp the gun grip firmly with one hand, be sure
you have good footing, before opening the ON/
OFF lever with your other hand.
Size 12 in. (305 mm)
Guard
0.072 in.
(1.83 mm)
flat
flat
flat
ball
ball
ball
14–16 in.
180–727 220–222*
(356–406 mm)
0.062 in.
(1.57 mm)
14–16 in.
(356–406 mm)
160–950 220–222*
164–438 220–222*
205–746 205–649**
205–976 205–649**
207–017 205–649**
WARNING
INJECTION HAZARD
0.052 in.
(1.32 mm)
14–16 in.
(356–406 mm)
To reduce the risk of a fluid injection
0.053 in.
(1.35 mm)
14–16 in.
(356–406 mm)
injury, follow the Pressure Relief Proce
dure on page 6 before removing or
-
0.063 in.
(1.60 mm)
14–16 in.
(356–406 mm)
installing a spray tip and whenever you are
instructed to relieve pressure.
0.071 in.
12–14 in.
1. Before starting the pump, be sure the ON/OFF
lever is closed. See Fig. 2.
(1.80 mm)
(305–356 mm)
* . Supplied with the mastic flow control.
2. Turn on the air to the pump to the minimum air
pressure needed.
** Reverse-A-Clean I Tip Guard Kit must be purchased
separately.
3. Hold a metal part of the pole gun firmly to the side
of the metal supply drum, with the nozzle pointed
into the drum.
Service
4. Grasp the gun grip (9–see Fig. 1, page 4) firmly
with one hand. Be sure you have good footing,
then open the ON/OFF lever with your other hand.
WARNING
INJECTION HAZARD
o reduce the risk of a fluid injection
injury, follow the Pressure Relief Proce
5. Operate the pump slowly until the entire system is
primed and all air has been pushed out of the
pump and hoses.
T
-
dure on page 6 before checking or
servicing any of the system equipment and when
ever you are instructed to relieve pressure.
6. Close the ON/OFF lever and follow the Pressure
Relief Procedure on page 6.
-
7. With the pressure fully relieved, install the spray tip
and tip guard. See the chart to the right to select
an appropriate spray tip.
Repair Kit 218–692 is available for repairing part no.
181–253 Ball Valve. See page 9.
307-655
7
Parts
1
6
18
10
5
4
3
8
25
20
3
2
1
12
9
2
1
13
11
7
14
15
2
16
4
17
1
1/2-14 npsm threads
06304
2
3
T
orque to 20–25 ft-lb (27–34 NSm)
If replacing the ball valve (8) transfer the serial number to the
new valve.
4
Purchase spray tip separately. See Spray Tip Selection
Chart, page 7.
8
307-655
Parts
Use Only Genuine Graco Parts and Accessories
Airless Mastic Pole Gun
Model 218–688, Series A
Ref.
Ref.
No.
Part No. Description
Qty.
No.
Part No. Description
Qty.
1
2
3
100–015 NUT, hex, 1/4–20
100–016 LOCKWASHER, 1/2 in.
100–021 SCREW, cap, hex head,
1/4 npt x 1.0 in.
100–333 SCREW, cap, hex head,
1/4 npt x 0.5 in.
108–061 RING, spring
108–060 UNION, adapter, straight,
3/8 npt(f) x 1/2 npsm(f)
108–064 STRAP, harness
181–253 VALVE, ball, 3/8 npt,
with warning label
2
2
13
14
15
180–724 HANDLE
1
1
168–845 GASKET, copper
165–973 ADAPTER, seat, valve,
7/8 unf x 1/2 unf
1
1
1
1
4
16
17
18
20
166–969
WASHER, non-metallic, 1/4 in.
1
1
220–222 TIP GUARD
054–129 PVC TUBING
180–742 RING
5
6
4 in.
1
1
1
21Y 172–479
TAG, warning
1
1
1
1
7
8
22Y 179–960
WARNING CARD (not shown)
25Y 181–245 PLATE, warning and serial
1
1
1
1
1
27Y 181–314
TAG, warning (not shown)
9
108–063 GRIP, handle
180–723 TUBE, spray
180–725 TUBE, spray
180–726 CLAMP, tube
10
11
12
Y
Replacement Warning labels, tags and cards are
available at no cost.
Valve Repair Kit 218–692
For repairing valve 181–253.
Includes items A through D;
individual parts not sold separately
.
A
B
D
C
B
A
06303
307-655
9
Technical Data
Manual Change
Summary
Maximum
W
orking Pressure . . . . . 3600 psi (252 bar)
.
Wetted Parts . . . . . . Zinc-plated carbon steel, steel,
Delrinr, buna-n, copper
The manual was revised to eliminate the ball from part
no. 218–692 Valve Repair Kit.
Delrinr is a registered trademark of the DuPont Company
.
10 307-655
Notes
307-655
11
Graco
Warranty and Limitation of Liability
WARRANTY
Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects
in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. Graco will,
for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defec
tive. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written rec-
ommendations.
-
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear
caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident,
tampering, or substitution of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by
the incompatibility of Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the im
-
proper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not sup
-
plied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor
for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective
parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not
disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the
costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PUR-
POSE.
Graco’s sole obligation and buyer
’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no
other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or prop
-
erty, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two
(2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS
SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors,
switches, hose, etc.) are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assis
-
tance in making any claim for breach of these warranties.
For Sales to Canadian Customers:
Except as expressly stated herein, Graco makers no representations, warranties or conditions, express, implied or collateral, con
-
cerning any goods or services sold, and GRACO SHALL NOT BE LIABLE IN ANY MANNER FOR any other representation,
warranty or condition of any kind, whether arising by operation of law or otherwise, including but not limited to, WARRANTIES OF
MERCHANTABLE QUALITY OR FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF LIABILITY
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equip
-
ment hereunder, or for the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of
contract, breach of warranty, the negligence of Graco, or otherwise.
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or
call this number to identify the distributor closest to you:
1–800–367–4023 Toll Free
Sales Offices: Atlanta, Chicago, Detroit, Los Angeles
Foreign Offices: Belgium, Canada, England, Korea, Switzerland, France, Germany, Hong Kong, Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
PRINTED IN U.S.A. 307–655 February 1985, Revised May 1996
12 307-655
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