Graco TEXTURE 240–786 Operation manual

308–878
Rev. A
INSTRUCTIONS-PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
TEXTURE SPRA Y GUN
100 psi (7 bar) Maximum Air and Fluid Working Pressure
Model 240–786, Series A; Model 240–787, Series A
WARNING
Pressure Relief Procedure
T o reduce the risk of serious bodily injury , including
electric shock and splashing fluid in the eyes, follow this
procedure whenever you stop spraying.
1. Shut of f the pump or sprayer .
2. T
rigger the gun.
3. Open the gun air valve.
4. Disconnect the power source.
Grounding
T
o reduce the risk of electric shock, proper electrical
grounding is essential. See your separate pump or
sprayer instruction manual, and consult your local
electrical codes for detailed grounding instructions.
W orking Pressure
T o reduce the risk of component rupture and serious
bodily injury , never exceed 100 psi (7 bar) AIR OR
FLUID WORKING PRESSURE to this gun. Do not
exceed the maximum working pressure of any other
component in the system.
Fluid and Solvent Compatibility
Do not use 1,1,1-trichloroethane, methylene chloride,
other halogenated hydrocarbon solvents or fluids con -
taining such solvents in this equipment, which contains
aluminum and/or zinc parts. Such use could result in a
serious chemical reaction, with the possibility of explo -
sion, which could cause death, serious bodily injury
and/or substantial property damage.
The standard gun adjustment is to adjust the material
flow knob (18) so only 1 or 2 threads are visible and
fully open the air valve (23).
Air bleeds from the gun nozzle when the gun air valve
(23) is open. Close the valve to stop the air , if desired.
Otherwise, it can stay open except during priming.
For continuous spraying , use the trigger bail (1) to hold
the trigger open to reduce fatigue.
T o prevent material surge at the beginning of a spray
pattern , squeeze the trigger slowly to the fully triggered
position while moving the gun quickly .
Adjusting the spray pattern requires testing to balance
the pump pressure and the air to the gun, and using
the right tip size.
1. T urn of f air valve (23). Adjust the pump pressure
until the material stream is about 8 in. (203 mm)
long. T urn on air valve (23).
2. T est the spray pattern on cardboard. Spray 18–30
in. (457–762 mm) from the surface.
23
Fig. 1
18
IN
OUT
1
Fluid inlet
special
threads



Air inlet
1/4 npsm

8416A
3. Adjust the pump and the gun air valve (23) to
achieve a uniform, round spray pattern.
4. Consider the size of aggregate in the material and
the coarseness of the spray pattern. Remember ,
the larger the tip, the heavier the pattern.
5. Overlap each stroke 50%.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1998, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001

NOTE: Always adjust the fluid pressure to the lowest
pressure needed. This maximizes the ef ficiency of the
gun adjustments.
When spraying small, confined areas , the valve and
knob may be used to make fine adjustments without
adjusting the pump when spraying smaller , confined
areas, such as closets.
Material flow knob adjustment (Fig. 2)
For a lighter spray pattern, turn IN the knob (18).
For a heavier spray pattern, turn OUT the knob (18) so
that no more than two threads are showing.
CAUTION
T urning the knob (18) out too far will remove the
knob and the gun will not shut of f when the trigger is
released.
Air flow valve adjustment (See Fig 2)
T
o decrease air flow turn the air valve (23) toward –.
T
o increase air flow , turn the air valve (23) toward +.
Check and thin the material as needed to maintain the
proper consistency . The material may thicken as it sits
and slow down production or af
fect the spray
pattern.
Flush the gun at the end of each work day and dry it.
Oil the gun daily with a few drops of light oil (SAE–10)
at the points indicated in Fig. 2.
23
Fig. 2
18IN
OUT
1
Oil
Oil
8416A
Technical Data
Air Consumption 5.3 to 10.6 CFM at 15 to 44 psi . . . . .
(150 to 300 liter/min at 1 to 3 kgs/cm
2)
Weight
35 oz (1000 grams) . . . . . . . . . . . . . . . . . . . . . . . .
8415A
1
3
5
7
8,
9, 10, 1 1
12*
13*
14* 15*
19
20
22
23
Model 240–787, Series A
Includes items 1 to 30
Model 240–786, Series A
Includes items 1 to 29
28
27
26
30
18
Ref
No Part No. Description Qty
1 187–391
BAIL, trigger 1
3 114–643 TRIGGER 1
5 114–642
FITTING, fluid inlet 1
7 114–636
RING, retaining 1
8* 111–547
5/16” TIP 1
9* 111–546
1/4” TIP 1
10* 111–545
3/16” TIP 1
11 111–963
1/8” TIP 1
12* 114–638
FITTING, needle 1
13* 114–637 NEEDLE 1
14* 114–639
GUIDE, regulator 1
15* 114–640 REGULAT
OR, fluid 1
18 193–687 GUN BODY 1
19 114–645 RETAINING RING 1
20 114–644 PIN 1
22 114–641
FITTING, air inlet 1
23 113–379 AIR VALVE 1
26 187–633 ADAPTER, hose 1
27 113–392
FITTING, 1” male 1
28 169–967 FITTING, air 1
29 110–110 SEALANT (not shown) 1
30 237–855 KIT
, fine finish tips 1
(see Manual 308–577)
*Gun Repair Kit 240–788
Includes 12, 13, 14, and 15. Purchase kit separately .
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. 308–878 May 1998