
SERVICE MANUAL
EN
15:1 GEAR DRIVEN AIR MOTOR DRIVES
AND AGITATOR ASSEMBLIES
FOR OPEN AND CLOSED DRUMS AND LARGE TANK ASSEMBLIES
31-451
31-424
31-454
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EN
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.
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.
OPERATOR TRAINING
All personnel must be trained before operating finishing
equipment.
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture,
malfunction, or start unexpectedly and result in serious injury.
LOCK OUT / TAG-OUT
Failure to de-energize, disconnect, lock out and tag-out all power
sources before performing equipment maintenance could cause
serious injury or death.
AUTOMATIC EQUIPMENT
Automatic equipment may start suddenly without warning.
PRESSURE RELIEF PROCEDURE
Always follow the pressure relief procedure in the equipment
instruction manual.
KEEP EQUIPMENT GUARDS IN PLACE
Do not operate the equipment if the safety devices have been
removed.
KNOW WHERE AND HOW TO SHUT OFF THE EQUIPMENT
IN CASE OF AN EMERGENCY
WEAR SAFETY GLASSES
Failure to wear safety glasses with side shields could result in
serious eye injury or blindness.
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.
NEVER MODIFY THE EQUIPMENT
Do not modify the equipment unless the manufacturer provides
written approval.
NOISE HAZARD
You may be injured by loud noise. Hearing protection may be
required when using this equipment.
!
CAUTION
Hazards or unsafe practices which
could result in minor personal injury,
product or property damage.
!
WARNING
PROJECTILE HAZARD
You may be injured by venting liquids or gases that are released
under pressure, or flying debris.
PINCH POINT HAZARD
Moving parts can crush and cut. Pinch points are basically any
areas where there are moving parts.
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.
WEAR RESPIRATOR
Toxic fumes can cause serious injury or death if inhaled.
Wear a respirator as recommended by the fluid and solvent
manufacturer’s Safety Data Sheet.
TOXIC FLUID & FUMES
Hazardous fluid or toxic fumes can cause serious injury or death if
splashed in the eyes or on the skin, inhaled, injected or
swallowed. LEARN and KNOW the specific hazards or the fluids
you are using.
FIRE AND EXPLOSION HAZARD
Improper equipment grounding, poor ventilation, open flame or
sparks can cause a hazardous condition and result in fire or
explosion and serious injury.
MEDICAL ALERT
Any injury caused by high pressure liquid can be serious. If you
are injured or even suspect an injury:
• Go to an emergency room immediately.
• Tell the doctor you suspect an injection injury.
• Show the doctor this medical information or the medical alert
• Tell the doctor what kind of fluid you were spraying or
GET IMMEDIATE MEDICAL ATTENTION
To prevent contact with the fluid, please note the following:
• Never point the gun/valve at anyone or any part of the body.
• Never put hand or fingers over the spray tip.
• Never attempt to stop or deflect fluid leaks with your hand,
• Always have the tip guard on the spray gun before spraying.
• Always ensure that the gun trigger safety operates before
NOTE
Important installation, operation or
maintenance information.
card provided with your airless spray equipment.
dispensing.
body, glove or rag.
spraying.
IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PROVIDE THIS INFORMATION TO THE OPERATOR OF THE EQUIPMENT.
FOR FURTHER SAFETY INFORMATION REGARDING THIS EQUIPMENT, SEE THE GENERAL EQUIPMENT SAFETY BOOKLET (77-5300).
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EN
DESCRIPTIONS
15:1 GEAR DRIVEN AGITATORS FOR 55 GALLON OPEN TOP DRUMS:
31-424 55 Gallon Agitator with Stainless Steel Drum Cover
31-397 55 Gallon Agitator with Plated Steel Drum Cover
31-400 Gear Driven Agitator Assembly (less cover)
31-456 Agitator Drive for 31-423, 31-397, and 31-400
41-3305 Agitator only (less drive and less cover)
31-455 Agitator Drive for 30 and 60 Gallon Tanks (Includes 13” air hose and fittings)
15:1 GEAR DRIVEN AGITATORS FOR 55 GALLON DRUMS WITH EXISTING AGITATOR:
31-454 55 Gallon Agitator Drive with bracket hardware for drums with existing agitator
31-453 Replacement Drive for 31-394
15:1 GEAR DRIVEN AGITATORS FOR 55 GALLON DRUMS WITH EXISTING AGITATOR:
31-451 55 Gallon Agitator Drive with threaded adapter for drums with existing agitator
!
WARNING
Before attempting any installation of agitators onto
pressure feed tanks, the tanks must be relieved of
pressure as high pressure can cause a serious injury.
Pressure is maintained in a pressure tank after the
system has been shut down. Before attempting
removal of cover, fill cap, or center plug, pressure
must be relieved using the following steps:
PRESSURE RELIEF PROCEDURE
(IF USED ON PRESSURIZED TANKS)
1. Turn off the main air supply to the tank.
2. Close air inlet valve located on tank air manifold. Remove
air inlet hose.
3. Bleed off air in the tank by turning the air relief valve
thumb screw counter-clockwise. Wait until all the air has
escaped through the valve before removing the pressure
tank cover, fill cap, or center plug.
4. Leave the air relief valve open until you have reinstalled the
cover, fill cap, or center plug.
OPTIONAL AIR MOTOR LUBRICATION
(Lubrication will extend the life of the motor)
An automatic air line filter/lubricator should be installed in the
air supply line no more than 18” from the air motor. A 5
micron filter is recommended. Install the lubricator level with
or above the motor so the oil mist will blow directly into or
down into the motor (see Fig. 1).
Fill the oil reservoir with SAE 10W motor oil.
Adjust lubricator
to feed 1 drop of
oil for every 50
cfm of air or 1
drop per minute
of continuous
running.
The unit may also
be lubricated
manually by adding 10-20 drops of oil SAE 10 weight oil into
the air inlet fitting at the start of each shift.
Fig 1 MAIN AIR LINE
ISOLATOR
VALVE
FILTER
REGULATOR
LUBRICATOR
MUFFLER
AIR MOTOR
AIR SUPPLY
Air supplies (compressors etc.) shall be sited in a nonhazardous area with a filter on the air intake system to
prevent the ingress of dust or similar foreign materials into the
parts where compression takes place.
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Periodically—Remove air adjusting valve and air strainer and
flush motor with a clean suitable solvent. Remove trapped
particles from screen and clean air strainer felt.

EN
55 GALLON AGITATORS WITH 15:1 GEAR REDUCTION FOR OPEN TOP DRUMS
55 GALLON AGITATORS
31-397 with plated steel cover (shown)
31-424 with stainless steel cover
31-400 Agitator (no cover)
41-3305 (no drive or cover) (items 3-11)
1
4
15:1 AGITATOR DRIVE
31-455 with Air Hose/ttings (shown)
31-456 less Air Hose/tting
23
25
24
37
25
26
29 28
28
38
27
32
36
22
30
31
33
3
2A
34
35
83-2114 STUFFING BOX ASSEMBLY
(Item 4)
12
13
14
5
6
3
10
78
16
19
18
20
15
17
21
11
9
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