Binks Model 41-11294
COMET 4-INCH AIR MOTOR
(3" STROKE)
SET-UP
Attach the air motor to a fluid section as
follows:
1. Remove upper tie rods from fluid section.
2. Pull air motor piston rod (10) out as far as
possible. Attach air motor to fluid section by
turning fluid section piston rod into air
motor piston rod.
3. Install and tighten upper tie rods of fluid
section into air motor base (14).
4. Line up tie rods with holes in fluid section
spacer ring. Attach nuts and tighten securely.
5. Install assembled pump onto pump mount.
6. Attach air supply to air motor inlet.
The pump is now ready for operation.
DISASSEMBLY OF COMET 4" AIR MOTOR
!
Caution
Do not operate air motor any faster than is
required to give desired spray pattern. Maximum
recommended speed is 60 cycles per minute.
Refer to nozzle sheet for proper spray patterns.
(3" STROKE)
1. Remove cylinder (34) by using a large
adjustable wrench on built-in hexagon on
top of cylinder. Turn cylinder counterclockwise to remove.
2. Loosen nut (11) using a spanner wrench or
piece of rod.
3. Pull out piston assembly (28), tube (17) and
rod (10) from head (20).
4. Place piston assembly, tube and rod in vise,
clamping on flats at end of rod.
5. Remove screw (32) with an allen wrench.
Pull piston assembly off tube, and inspect
o-ring (4) in piston for damage (replace if
necessary).
6. To inspect and/or replace valves (5) in piston,
remove stopnuts (6), plate (31), plate (29),
and plate (26).
7. Check all rubber parts, cylinder and tube for
NOTE
When replacing poppet valve set (5) on BOTTOM
of piston, first remove the ribs which hold the
three valves together (see diagram at right).
wear or damage (replace if necessary).
8. Reassemble air motor in reverse order,
making certain that the wave washer (2) is
between the washer (1) and the plate (29).
For Item 5, cut off ribs.
Replaces
Part Sheet
77-2370R
Part
Sheet
77-2370R-1
In this part sheet, the words WARNING, CAUTION and NOTE are used to emphasize important safety information as follows:
!
WARNING
Hazards or unsafe practices which could
result in severe personal injury, death or
substantial property damage.
!
Caution
Hazards or unsafe practices which could
result in minor personal injury, product
or property damage.
!
NOTE
Important installation, operation or
maintenance information.
Warning
Read the following warnings before using this equipment.
Read the Manual
Before operating finishing equipment, read and
understand all safety, operation and maintenance
information provided in the operation manual.
Inspect the Equipment Daily
Inspect the equipment for worn or broken parts
on a daily basis. Do not operate the equipment
if you are uncertain about its condition.
Wear Safety Glasses
Failure to wear safety glasses with side shields
could result in serious eye injury or blindness.
Never Modify the Equipment
Do not modify the equipment unless the
manufacturer provides written approval.
De-energize, DEPRESSURIZE, Disconnect
and Lock Out All Power Sources During
Maintenance
Failure to De-energize, disconnect and lock out
all power supplies before performing equipment
maintenance could cause serious injury or death.
Know Where and How to Shut Off the
Equipment in Case of an Emergency
Operator Training
All personnel must be trained before operating
finishing equipment.
Pressure Relief Procedure
Always follow the pressure relief procedure in the
equipment instruction manual.
Equipment Misuse Hazard
Equipment misuse can cause the equip­ment to
rupture, malfunction, or start unexpectedly and
result in serious injury.
Noise Hazard
You may be injured by loud noise. Hearing
protection may be required when using this
equipment.
Keep Equipment Guards in Place
Do not operate the equipment if the safety
devices have been removed.
High Pressure Consideration
High pressure can cause serious injury. Relieve all
pressure before servicing. Spray from the spray
gun, hose leaks, or ruptured components can
inject fluid into your body and cause extremely
serious injury.
Projectile Hazard
You may be injured by venting liquids or gases
that are released under pressure, or flying debris.
Static Charge
Fluid may develop a static charge that must be
dissipated through proper grounding of the
equipment, objects to be sprayed and all other
electrically conductive objects in the dispensing
area. Improper grounding or sparks can cause a
hazardous condition and result in fire, explosion
or electric shock and other serious injury.
Pinch Point Hazard
Moving parts can crush and cut. Pinch points are
basically any areas where there are moving parts.
CA PROP
Automatic Equipment
Automatic equipment may start suddenly without
warning.
65
PROP 65 WARNING
WARNING: This product contains chemicals known
to the State of California to cause cancer and
birth defects or other reproductive harm.
IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PROVIDE THIS INFORMATION TO THE OPERATOR OF THE EQUIPMENT.
FOR FURTHER SAFETY INFORMATION REGARDING BINKS AND DEVILBISS EQUIPMENT,
SEE THE GENERAL EQUIPMENT SAFETY BOOKLET (77-5300).
2
Parts List
When ordering, please specify Part No.
ITEM PART
NO. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
DESCRIPTIONQTY.
20-3170WASHER............................................ 1
41-11024WAVE WASHER................................. 1
41-1170STUD, (1 shown).................................. 3
20-3121 ▲O-RING, 7/8 in. I.D. x 1 in. O.D. ............. 1
41-1136 ▲POPPET VALVE SET............................ 1
20-3246STOPNUT, 8-32 (3 shown)..................... 6
73-50NIPPLE................................................ 1
41-47 ▲PACKING............................................ 4
41-46CENTER PACKING ADAPTER............. 1
41-11298ROD.................................................... 1
41-2435NUT.................................................... 1
41-45PACKING ADAPTER........................... 2
20-3071PART, 5/16-16 x 1-1/4 in. long (1 shown)... 3
41-11220BASE................................................... 1
41-11239 ▲MUFFLER............................................ 1
41-11297POST, (2 Shown)................................... 3
41-11296TUBE.................................................. 1
41-11287SHELL HOUSING................................ 1
41-11288CLIP.................................................... 1
ITEM PART
NO. NO.
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
DESCRIPTIONQTY.
41-11219HEAD................................................. 1
41-11235 ▲“U” RING........................................... 1
41-11233STRIKER.............................................. 1
41-11236SPRING............................................... 1
41-11231PLATE................................................. 1
20-5869 ▲O-RING, 5-1/2 in. I.D. x 5-3/8 in. O.D. ...... 1
41-11230PLATE................................................. 1
41-11234 ▲“U” RING........................................... 1
41-11222PISTON ASSEMBLY............................ 1
41-1165PLATE, (for lower poppet valve)............. 1
▲SAME AS ITEM 5............................... 1
41-11229PLATE................................................. 1
20-5868SOC. HD. SCREW,
5/16-18 x 3-1/2 in. long........................ 1
41-236SPRING............................................... 1
41-11295CYLINDER.......................................... 1
20-258NUT.................................................... 1
20-4579EYE BOLT........................................... 1
41-13021STATIC GROUND WIRE, (not shown)..... 1
▲Also available in Repair Kit 41-11277. Not furnished. Please order kit separately.
SPECIFICATIONS
Operating Pressure 20 – 100 PSIG
DIMENSIONS
1.38 – 6.9 BAR
Air Inlet
3/8 NPS (m)
Effective Dia.
3-7/8 in.
98 mm
Maximum Speed
60 cycles/minute
Stroke
3 in.
76.2 mm
Air Requirement
.573 cu. ft.
16.2 cu. decimeters
(per cycle @ 100 PSIG (6.9 BAR)
Cylinder I.D.
5-1/2 in.
140 mm
Air Filtration
40 micron
Weight
Overall (dia. x length) 6-1/2 in. x 13-7/8 in. 165 mm x 352 mm
18 lbs.
8.1 kg
troubleshooting
TROUBLE
PROBABLE Cause
SOLUTION
Air motor will not
operate or reverse
stroke direction.
No air supply.
Check air pressure regulator.
Motor loses power under
load, and air hissing
during operation.
Air motor piston and
tube “u” rings worn.
Remove and replace piston and
tube “u” rings.
Cylinder and tube walk scored.
Remove and replace scored cylinder and/
or tube.
Poppet valve seats worn.
Remove and replace poppet valves.
Lack of lubrication.
Remove air supply hose from air motor and
insert a few drops of light machine oil.
Squeaking during
operation
3
WARRANTY
This product is covered by Binks’ 1 Year Limited Warranty.
Binks Sales and Service: www.binks.com
U.S.A./Canada Customer Service
195 Internationale Blvd.
Glendale Heights, IL 60139
630-237-5000
Toll Free Customer Service
and Technical Support
800-992-4657
77-2370R-1 Revisions: Trademark updates;
(P2) Added Prop 65 warning; (P4) Updated
contact information.
Toll Free Fax
888-246-5732
3/13 ©2013 Binks All rights reserved. Printed in U.S.A.