Symtech VFX 1 - Manual (Page 14)

13
ADAPTER SET-UP
1) Disconnect the upper radiator hose at most accessible point.
2)
The appropriate size adapter hose along with its matching step adapter is
installed on the exposed outlet neck and secured with correct hose clamps.
3)
The tightest fitting step adapter is next installed and secured by hose clamps to
the vehicle’s exposed radiator hose making sure the connection plugs are
accessible.
4)
Connect the RED/NEW coolant flow control valve to the step adapter leading to
the thermostat or engine block.
5)
Connect the BLACK/USED coolant flow control valve to the step adapter
leading to radiator.
PRESSURE TEST
A cooling system pressure test to detect leaks in the cooling system can be performed using
the VFX 1. Care must be taken not to over pressurize the system during this test and the
radiator cap must be in proper working order to act as a safety outlet for excessive pressure.
1)
Turn AIR CONTROL valve (#1) Left, FUNCTION CONTROL valve (#2)
Right, and FLUID CONTROL valve (#3) OFF / PRESSURE TEST. (Fig 1)
2)
Open BLACK/USED coolant flow control valve and VERY SLOWLY, open
RED/NEW coolant flow control valve at hose end, observing increasing
pressure on compound gauge.
3)
When desired system pressure is obtained (usually 1-2lb below specified system
pressure), turn RED/NEW coolant flow control valve at hose end off.
4)
Observe pressure gauge for two minutes – pressure should not drop.
5)
If pressure drops, investigate for leaks, resolve, and retest.
6)
If no pressure loss is observed, return all control panel valves to neutral position,
(Fig 3) and flow control valves at hose ends to off.
EXCHANGE (BLUE)
1)
Verify all VFX 1 Control panel valves are in the neutral
position, (Fig 1) and flow control valves at hose ends are off.
2)
Turn AIR CONTROL valve (#1) to the left, FLUSH ( BLUE )
and FUNCTION CONTROL valve (#2) and FLUID
CONTROL valve (#3) to the right, FLUSH (
BLUE ). (Fig 2)
Pressure will begin to build on the compound gauge.
3)
Open both RED/NEW
and BLACK/USED coolant flow control valves.
4)
The new coolant pump will pulsate and new coolant should be flowing into
engine block and used coolant should be flowing from radiator to unit.
NOTE: IF new coolant pump DOES NOT pulsate and used coolant IS NOT flowing from radiator to unit,
RECHECK all connections, control panel valves, and flow control valves for correctness and RETRY. IF
new coolant pump STILL DOES NOT pulsate, the vehicle’s cooling system is a REVERSE FLOW
system or the thermostat will not open from the back side. Close both RED/NEW and BLACK/USED
coolant flow control valves and refer to REVERSE FLOW section on page 11.
5)
Let flushing action continue until used coolant hose matches color of new
coolant hose or predetermined amount of new coolant is utilized.
6)
Return AIR CONTROL valve (#1) to neutral position. (Fig 3)
7)
Allow 5 to 10 seconds for pressure to drop, then turn both RED/NEW and
BLACK/USED coolant flow control valves at hose ends off.
Figure 1
Figure 2
Figure 3
Figure 1
Figure 2
Figure 3