VIPER FLUSHING SERVICE INSTRUCTIONS
(For Models AF3200, AF3250, AF3400, 7500 and most shop
air powered Cooling System Service Units from VIPER and SOLAR)
GENERAL OPERATING INFORMATION
POWER: The following instructions are designed for units powered by shop air pumps. Units utilizing 12V pumps do not have enough power to perform flushing or back-flushing services. VIPER and SOLAR Cooling system Service Centers require incoming air pressure be regulated to a minimum of 45 psi and a maximum of 125 psi. Pressures outside of this range will cause operating problems and void the warranty.
CAPACITY: VIPER AF3250, AF3400, and SOLAR 7500 models have side mounted tanks, each providing a working capacity of 7 gallons and total capacity of 8 gallons. The tanks come with easy to read capacity markings and can be quickly removed for storage and cleaning. Replacement tank kits (Part No. 5030) are available, offering easy conversion between different types of coolants. Each tank has 2 flow tubes placed into it. The pickup tube is the longer tube and pulls fluid from the bottom of the tank. The intake tube is the shorter tube and drops all incoming fluid into the top of the tank. This arrangement allows good mixing of fluid and avoids any tube-to-tube streaming.
Other VIPER and SOLAR models use internal tanks with differing capacities. Refer to the User’s Guide that accompanies each unit for more detailed information.
OPERATION: The VIPER AF3250, AF3400 and SOLAR 7500 models all utilize an easy-to-use control panel, which includes Service Valves, a System Pressure Gauge and a Rotary Control Knob.
NOTE: Models with recycling capability will also have a Filter Control Knob and a Filter Pressure Gauge. Neither of these will be used during the vehicle service and are only used during the recycling process.
Service Valves are labeled as follows: “Pump From” and “Pump To”. Operation of the machine requires only that the user select where the fluid comes from (Used Tank, New Tank or Vehicle) and where the fluid is to be directed to (Used Tank, New Tank or Vehicle).
With the wide selection of fluid direction options, a technician can perform a vehicle service, mix fluid inside one tank, transfer fluid between the 2 tanks, pull fluid from the vehicle or empty the tanks into outside containers.
NOTE: Other VIPER and SOLAR cooling system service models utilize unique valve control options – refer to the User’s Guide that accompanies each unit for specific control function. All steps of service will remain the same.
SERVICE HOSES: Nearly all VIPER and SOLAR Cooling System Service models utilize 2 Service Hoses, one red and one black. The black service hose is the working hose while the red hose functions as a return hose during vehicle service. The red hose includes a clear segment, allowing the technician to view the fluid exiting the vehicle. Each model comes supplied with quick connect couplers, to be installed on the vehicle end of each service hose. Each hose contains a removable screen (placed in the end of hose closest to the machine) to keep contaminants from flowing into and damaging the machine’s pump. To ensure maximum pump life, never run a machine with the screens removed.
ACCESSORIES: Each model includes a variety of cooling system service accessories, including differing sizes of Heater Hose Tees, Radiator Hose Adapters and Radiator Cap Adapters. Also available is an Overflow Evacuation Hose that enables evacuation of fluid from the overflow container.
Heater Hose Tees are designed for permanent installation in a vehicle, such as fleet applications where technicians regularly service the same vehicles. Care must be taken when installing Tees to position them in an easily reached location, providing hassle-free access for future services.
Radiator Hose Adapters come in pairs and include one matching hose for installing an Adapter to either the radiator or to the thermostat housing. Always install the adapter with the open side towards the cooling system component and use hose clamps to secure both the hose to the adapters and to the vehicle.
The Radiator Cap Adapters come in two styles and allow easy connection to the vehicle’s radiator. Part No. 5016 is a threaded style Radiator Cap Adapter that fits late model Ford and GM vehicles where the radiator cap is mounted on the coolant overflow container. Part No. 5042 is a universal cone style Radiator Cap Adapter that fits nearly all passenger vehicles. Part No. 5042 allows quick attachment for lowering the fluid level in the radiator or the overflow tank, which allows a spill-free upper radiator hose connection. Use a Male Quick Connect insert, when possible, with a Radiator Cap Adapter to allow quick and easy interface between the Radiator Cap Adapter and Service Hoses.
VEHICLE SERVICE – COLD CAR / REVERSE FLOW SERVICE METHOD
Note; This service procedure requires a cooling system configuration where the thermostat is mounted in the traditional location on the top of the engine. Vehicles using certain engine configurations (such as the older GM Quad 4, late model GM 5.3L V8 and the Jeep / Dodge 4.7L) that utilize a low mounted thermostat need to
be serviced using a hot car method as described in the User’s Guide found with your coolant machine.
The Cold Car / Reverse Flow Service Method is the recommended way to service most vehicles. In this case, “Cold Car” is a reference to the fact that the vehicle is not running during the service. The key benefits of this style of service are improved cleansing effectiveness and reduced difficulty over other service options.
This service technique results in a quicker, easier service routine, utilizes a back-flush reverse fluid flow for better cleaning action and avoids the complications and technician concerns related to servicing a running vehicle. For even greater cleansing effectiveness, this style of service can be combined with a solvent-based cooling system cleaner (like VIPER Part No. 5090) to create the most effective cleaning action and remove more build-up of contaminants from the inside of the cooling system.
Prior to starting any cooling system service, perform a visual inspection of the cooling system, looking for obvious signs of system failures, such as missing components or leaking fluids. Always inquire from the customer as to the recent operation of system and the service history of the vehicle. Activated service lights, abnormal gauge readings and lack of heat, are all symptoms of greater service needs. Inquiring before beginning the service will save time and result in greater customer satisfaction.
Loading...