Graymills Tl2 User Manual
795-90914 0812
Operation and Maintenance
Instructions
Tempest™ Jet Spray Cabinet
T-10, T-10S and T-20S
SAFETY WARNINGS
You will find various types of safety information on the following pages
and on the labels attached to Graymills equipment. The following
Safety Statements explain their meaning:
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow
this symbol to avoid possible injury or death.
DANGER indicates a hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
CAUTION, used with the safety alert symbol,
indicates a hazardous situation which, if not
avoided, could result in minor or moderate
injury.
CAUTION, used without the safety alert symbol,
is used to address practices not related to
personal injury.
The NOTE symbol means that failure to follow
these instructions could cause damage to the
equipment or cause it to operate improperly.
Reference Figures are located on Page 5.
Never work with equipment you feel may be unsafe. Contact
your Supervisor immediately if you feel a piece of equipment is
in an unsafe condition.
NEVER USE A FLAMMABLE OR COMBUSTIBLE FLUID IN THE
TEMPEST. USE ONLY NONFLAMMABLE, NON-COMBUSTIBLE,
WATER-BASED, LOW FOAMING CLEANING COMPOUNDS IN
THIS MACHINE.
DO NOT CONTAMINATE CLEANING FLUID WITH ANY
FLAMMABLE OR COMBUSTIBLE MATERIAL SUCH AS GASOLINE,
ALCOHOL, MINERAL SPIRITS, ETC. DRAIN PARTS TO BE
CLEANED OF ANY FLAMMABLE MATERIAL OR COMBUSTIBLE
MATERIAL BEFORE PLACING INSIDE CLEANING TANK. EVEN
SMALL QUANTITIES CAN CREATE A DANGEROUS FIRE
HAZARD.
Unit must be properly grounded to prevent electric shock hazard.
Connect only to three prong outlet. Should plug or cord become
cracked, frayed, damaged in any way, it should be repaired/replaced
immediately by a qualified electrician.
Never use an extension cord.
Since operator safety is at all times a priority, this unit is equipped
with a Ground Fault Interrupter (GFI). Should plug or cord require
replacement, it should be wired by a licensed electrician to the GFI in
the control box.
All electrical connections should conform to national/local codes and
be made by qualified personnel.
Before performing any maintenance on this unit, be sure to disconnect
electric power.
Prior to changing cleaning fluid or servicing the Tempest, make sure
that all moving parts have stopped and that heating element and
cleaning solution have cooled.
Pump operation is controlled by depressing an air switch foot pedal.
For safety, if this must be replaced, use only the same air switch, not an
electrically operated one.
Keep pump and motor clean and free of all contaminates. Never allow
any liquids to come into contact with motor or electrical systems as an
electric shock hazard could result.
Thermostat and pressure parameters have been factory set and must
never be tampered with.
• The Tempest 10, 10S and 20S Units are preset to operate up to
600 PSI. Operating with pressure greater than 600 PSI can create a
HAZARDOUS situation.
• Tempestisequippedwithapressurereliefvalveinthespraycabinet
(Figure 6). When pressure is relieved, the valve automatically resets.
Should pressure inside spray delivery system reach an unsafe level,
relief valve will vent excess pressure back into cabinet. This valve
must be kept clean and free of all contaminants to insure its proper
functioning. Activation of the pressure relief valve is not expected
during normal operation.
Do NOT start spray pump unless you have a firm grip on the nozzle. If
nozzle is dropped, stop pump immediately. An unrestrained hose and
nozzle could cause injury, damage to cabinet and parts in it, as well as
break the window, causing possible injury. Restrain parts which might
be violently moved by high pressure spray.
NEVER aim spray directly at gloves or anything other than parts to be
cleaned.
Always wear appropriate safety items such as gloves, apron, safety
glasses or goggles when loading, using or unloading or cleaning the
Tempest.
Follow all directions, Warnings and Cautions that are in the Material
Safety Data Sheet (MSDS) for the cleaning detergent being used.
In an accident where any cleaning solutions are splashed on clothing
follow MSDS. Remove wet clothing promptly and thoroughly wash
body areas that have been in contact with the solution. Do NOT permit
saturated clothing to remain in contact with skin. Industrial cleaners can
cause irritation to some individuals.
Cleaning solutions may irritate skin and eyes. If splashed in eyes, flush
thoroughly with water. Consult Material Safety Data Sheet (MSDS) and
a physician.
• Ifyouhaveanyquestionsregardingthecorrectcleaninguids
to use in this unit, call Graymills at 773-248-6825 and ask for
Customer Service. We recommend our low foaming Aquatene
2
™.
Tempest is equipped with a safety interlock switch that prevents the
pump from operating unless the cabinet door is closed and secured
with door hasps. Never override safety interlock switch or operate this
unit if the safety interlock switch is not functional.
Never open cabinet door when spray pump is operating, or try to
override the safety switch. If switch fails, do NOT use Tempest until
replaced.
Do NOT overload unit. Maximum capacity is 500 pounds.
Be careful to avoid hot areas within the cleaning chamber when
opening unit.
Parts will be heated during cleaning. Wear appropriate clothing and
protection.
Never operate unit with a cleaning solution reservoir level below
minimum or activate heater when it is not immersed in liquid.
Do NOT operate unit without a filter bag.
SITE PREPARATION
Before installing, careful consideration should be given to the place of
operation. Place unit on a smooth, level surface. Use leveling feet to
correct for minor variations in floor.
Place Tempest near a 115V, 60Hz, 1-ph grounded electrical outlet.
You will also need compressed air, maximum of 100PSI.
The work area should be well ventilated and lit.
Provide adequate lighting in the work area to permit viewing of the
cleaning process and of the floor area around the machine. Be sure
to allow adequate room to bring work to and from the machine. Use
flooring or floor covering that does not become slippery when wet.
Provide sufficient clearance around the machine for fluid changeovers
and servicing.
A drain coupling has been provided in the reservoir. It is recommended
to plumb a drain valve to this coupling to facilitate cleaning.
We recommend our low foaming Aquatene
specific details on the formula best suited for your application.
™
. Contact Graymills for
INSTALLATION
For Tempest 10 Unit:
1. Disconnect Drain Pipe (Fig. 1, p.5) and lower pipe into pail reservoir
2. Remove entire pail assembly from shelf and set on floor.
3. Loosen snap ring securing ring to pail and remove lids (Fig. 2 and
3, p.5)
4. Graymills recommends use of pail liners as a means of simplifying
liquid changes and insuring reservoir’s long life
OPERATION
The spray chamber and reservoir of the Tempest 10S and 20S units
are stainless steel. The base is carbon steel.
If you have purchased a heated Tempest 10 unit with a carbon steel
cabinet, some uses of water-based cleaning materials will generate
steam and water vapor. Surfaces inside the cabinet will be subject
to rusting. This is surface rust and does not appreciably affect the
service and use of the unit. We recommend that the door be left open
when the unit is not in use. Leaving the door open when not in use
may lessen condensation and rust inside the unit. If your cleaning
requirements cannot tolerate any rust or contamination, please contact
Graymills about stainless steel cabinets. Also, check with your cleaning
fluid supplier to make sure your cleaning materials contain a rust
inhibitor.
The Graymills warranty does not cover rusting of carbon steel parts.
Check fluid level in cleaning solution reservoir daily. Assure level is at
or above minimum level at all times. Heavy, constant use may warrant
daily fluid changes.
Inspect filter bag on end of drain pipe daily. Filter bag is secured to
drain pipe with a reusable plastic tie – there is a small plastic release
lever on locking cube.(Fig. 7, p.5) Properly dispose of any solid waste
accumulation, rinse bag in water, and re-attach to drain pipe.
Failure to keep cleaning solution reservoir full can result in heater
failure, loss of pump prime, or over heating of the fluid.
Do NOT operate unit without a filter bag.
Inspect heating element daily. Any foreign material should be removed
by gently scrubbing.
Be careful to prevent liner from coming into contact with heater element
as the plastic will melt on element and cause heater failure
5. Fill pail with low foam detergent and water, following mixing
directions on recommended detergent package.
Excessive foaming caused by improper mixing ratios or use of
improper detergents, can result in loss of pump prime and can
damage heater and/or pump. Should foaming occur, skim off
excessive foam and add water to proper level or add defoaming
agents. If foaming continues, dispose of liquid and review detergent
ratios and/or formulation
6. Replace lid and secure with snap ring. Put assembly back within
cabinet.
7. Prime pump by filling intake hose completely with water, then
connecting filter hose to pump.
8. Plug heater cord into lower socket in outlet box above pump shelf.
Plug pump cord into upper socket (Fig. 4, p.5).
9. Connect drain hose (Fig. 1, p.5) and close lower cabinet door.
10.Plug unit’s power cord into 115V, 60 Hz, 1-ph grounded outlet.
11.Check GFI Switch on rear of contorl box to make sure it is ON.
For Tempest 20S Unit:
1. Fill 20-gallon cleaning solution reservoir to at least a 12” depth with
appropriate cleaning solution. To protect equipment and personnel,
the fluid level should never fall below 4” from the top of the tank
and must cover the coiled portion of the heating element and the
thermostat’s thermal bulb.
2. With door closed and latched, activate main power switch on the
control panel.
Do NOT neglect cleaning of the heating element. Failure to do so will
cause premature failure. Do NOT allow oil or sludge to bake onto the
heater element as premature heater burnout will result.
At this time the pump is fully operational. Do NOT depress the foot
pedal switch unless the spray hose is being gripped. Under pressure,
without gripping, it will fly around potentially causing damage.
• Usingtheadjustablethermostat,setheattodesiredtemperatureup
to 120°F maximum. Allow approximately one to two hours for the
heater to warm the solution to operating temperature.
• Openspraychamberdoorandsecurewithdoorretaininglatch
(Fig. 5, p.5). Carefully load parts into the cabinet, distributing
weight as evenly as possible.
Tempest is equipped with a pressure relief valve in the spray cabinet
that is intended as a safety device (Figure 6). When pressure is
relieved, the valve automatically resets. Should pressure inside spray
delivery system reach an unsafe level, relief valve will vent excess
pressure back into cabinet. This valve must be kept clean and free of all
contaminants to insure its proper functioning. Activation of the pressure
relief valve is not expected during normal operation.
Adjustable nozzle should never be adjusted to a no-flow position as it may
activate the pressure relief valve and cause possible mechanical failure of
the pump. If no flow is desired, remove foot from foot pedal switch.
Always completely lift parts into and out of cabinet. Never allow parts
to rest on door opening as they will damage gasket material. Keep
gaskets clean and free of contaminants. Failure to do so reduces gasket
life and water sealing effectiveness.
(Continued on next page)
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