8
Coolant System Leak Testing
Cooling system leak testing can be performed two ways
Use Rotunda PowerSmoke
™
to quickly and easily find cooling system leaks either with decay testing or
using visible vapor. First, attach provided cooling system adaptor to pressurized coolant bottle or radiator
at cap. For decay testing, simply pressurize coolant system with air-only to manufacturers recommended
test pressure, typically 15 PSI (1 BAR). Turn off flow control valve to lock out system and watch for decay.
Inspect visually for leaking fluid. Alternatively, to perform leak test using vapor, first drain the cooling
system of all fluid. Introduce pressurized vapor in to cooling system at no more than the manufacturers
recommended test pressure and use inspection light to find leaks. Retest after repairs are performed to
confirm proper repair and seal.
IMPORTANT NOTE
Many leaks in systems are considered “normal” or “within tolerance.” For example,
a weep hole in a muffler is acceptable. DO NOT assume every wisp of represents a
failing component. Check with vehicle manufacturer before replacing suspected failed part.
!
TROUBLESHOOTING
TESTING FOR LEAKS CONTINUED
PROBLEM SOLUTION
No Green Light
• Check for proper battery voltage
• Align power supply switch with input (AC or DC)
• Check polarity if 12V DC is selected
• Check fuse if AC Power is selected
Red Light Flashing
• Open circuit / internal component
• Contact Redline Technical Support
800-55-SMOKE or +1 714-451-1411
Email: [email protected]
No Air Flow
• Check connection to compressed air
• Open the flow control valve
• Check hoses are not kinked or pushed into machine
Poor Vapor Density or Volume
• Insufficient Vapor Producing Fluid: Refill
• Flow Control Valve is partially closed
• Vapor Output Hose is kinked
High Test Pressure Reading
• Vapor Output Hose is kinked
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