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Item 59431

Air Supply

1.  Connect compressed air to the Air 

Inlet at the rear of the machine.

2.  Adjust the compressor’s air regulator as needed for 

best performance.  Do not exceed the recommended 

maximum input air pressure of 150 PSI.

Air Inlet

Compressed

Air Coupler

General Operation

Power / Vapor Indicator

1.  The Power Indicator should be lit when power 

cables are connected to a fully charged 12V 

battery using the proper polarity as described 

in “Power Source” on page 6.

2.  Press the Power Button to turn on the 

machine; the Vapor Indicator should light, 

indicating vapor is being produced.
a.  If the Vapor Indicator does not light with 

the Power Button in the ON position, 

battery charge is not sufficient.

b.  If the Vapor Indicator is flashing, there is an 

open circuit or internal component fault.

Power

Indicator

Power

Button

Vapor

Indicator

System Pressure Gauge

The Pressure Gauge is used to determine if a 

leak exists in a sealed system under pressure.
1.  Pressurize the system to approximately

11-14" of water column (0.5 PSI / 35 millibar).

2.  Lock out sealed system by rotating Flow 

Control Knob clockwise all the way to close.

3.  Observe the System Pressure Gauge:

a.  Pressure holds - No leaks are indicated.
b.  Pressure decreases - Leaks are indicated.

Note:

 Not all systems are designed to be 100% sealed, 

or designed to be 100% sealed at high pressures.

11-14

"

System 

Pressure Gauge

Flow Meter

The Flow Meter is used for system diagnostics.
1.  Rotate the Flow Control Knob 

counterclockwise

to increase smoke pressure.

2.  Rotate the Flow Control Knob 

clockwise

to decrease or stop air flow.

3.  Observe the Flow Meter:

a.  A small leak in the system under evaluation is 

determined when the Flow Indicator ball rises 

within the Flow Meter to the .02″ to .039″ level.

b.  A large leak in the system under evaluation is 

determined when the Flow Indicator ball rises 

within the Flow Meter to .04″ level or above.

Flow Control

Knob

Large Leak

Small Leak

Flow Meter

Summary of Contents for 59431

Page 1: ...Manual Safety Instructions Visit our website at http www harborfreight com Email our technical support at productsupport harborfreight com DIAGNOSTIC SMOKE MACHINE 59431 Owner s Manual Safety Instruct...

Page 2: ...gh concentrations of smoke fluid vapor in an enclosed area can displace oxygen and create a RISK OF SUFFOCATION and DEATH Always work in a well ventilated area This unit is intended for detecting smal...

Page 3: ...and perform its intended function Any part that is damaged should be properly repaired or replaced by a qualified technician Do not use the tool if any switch does not turn On and Off properly 16 Repl...

Page 4: ...30 to 110 F Operating Modes Air Vapor Maximum Input Air Pressure 150PSI Maximum Output Air Pressure 0 5PSI Functions Fluid Fill Dipstick Smoke Machine Pressure Gauge Flow Control Knob Power Button Pow...

Page 5: ...fireproof surface in a room where the temperature is from 50 104 F Note If recharging a newly spent Battery Pack allow it to cool completely before charging 2 Battery Pack must be undamaged and a Li I...

Page 6: ...4 Check fluid level every 50 100 tests of the machine Fluid Fill Dipstick Smoke Fluid Smoke Machine Maximum Fill Line On Dipstick Smoke Machine Connections Power Source Note This machine requires a fu...

Page 7: ...tor System Pressure Gauge The Pressure Gauge is used to determine if a leak exists in a sealed system under pressure 1 Pressurize the system to approximately 11 14 of water column 0 5 PSI 35 millibar...

Page 8: ...ssure Loss Test on page 8 4 If leak s are found turn the Smoke Machine ON and open the Flow Control Knob to introduce Vapor to the system 5 Use the LED Flip Light to locate leaks 6 When the leak s are...

Page 9: ...alified technician TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise or vibration occurs have the problem corrected before further use Maintenance 1 BEFORE EAC...

Page 10: ...Flow control knob is closed 3 Hoses are kinked 1 Check compressed air line is connected to machine Turn on air compressor 2 Open flow control knob 3 Unkink hoses No minimal vapor 1 Smoke fluid level...

Page 11: ...STRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT...

Page 12: ...due directly or indirectly to normal wear and tear misuse use not for the intended purpose or not in accordance with the product manual abuse accident rental modification or alteration unauthorized r...

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