MotorVac TRANSTECH III - Manual (Page 13)

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11
Transmission Service Procedure (Cont’d)
8. With the vehicle’s engine still running, the ENGINE START light should be ON solid. The PRESSURE
GAUGE will be reading the amount of pressure coming from the vehicle. Check the transmission fluid
level. Feel the hoses for heat. Heat in both hoses will verify good bypass flow from vehicle, through the
unit and back to vehicle. Transmission fluid will automatically circulate in bypass mode until service is
begun. Press the CHANGE FLUID button. The ENGINE START light will be on solid, as will the DRAIN
& FILL lights, indicating that the service is in progress. Pressure reading on the gauge may drop slightly
but there should still be pressure reading on the gauge. If the gauge drops to zero when the service is
started you may have the service hoses hooked up backwards.
If no bypass flow is indicated, DO NOT BEGIN SERVICE.
If the ENGINE START light is still flashing after the CHANGE FLUID button is pressed, bypass flow has
not been achieved. VERIFY good bypass flow before beginning service. Be aware of Low Flow Vehicles:
Toyota, Chrysler, Mitsubishi, Ford Explorer and Ford Ranger need to be in neutral, with engine rpm held
at 1800 the entire service. Feel both lines for heat before pressing the CHANGE FLUID button.
Bypass flow must be achieved by performing one or more of the following procedures (a, b, or c). Also,
see troubleshooting section page 24 for additional bypass flow information.
a) Verify that the vehicle’s parking brake is set, and then place the gear lever in neutral.
b) Accelerate and hold the vehicle’s engine steady at approximately 1,800 RPM.
c) Verify that the vehicle’s parking brake is set, press and hold the vehicle’s foot brake firmly
then place the gear lever in drive. (Dodge & Jeep 4 wheel drive.)
d) If pressure on the gauge drops to zero after beginning the service the clean and dirty hoses
may be installed backwards. Switch hoses & restart.
9. Verify that waste tank is filling and clean tank is emptying. Service should proceed automatically until fluid
level in clean tank reaches zero level.
10. SERVICE COMPLETE light should come on and unit should switch back to ‘bypass’ flow. Check
vehicles dipstick level and adjust if necessary.
If dipstick level is low, hold down FILL button to increase level.
If dipstick level is high, hold down DRAIN button to decrease level.
11. CHANGE FLUID Service is now complete. Turn off vehicle, disconnect adapters and power cord.
Reconnect vehicles cooler lines. Restart vehicle & check for leaks.
12. Move TransTech unit to waste recycle area, Insert waste hose into waste barrel, Connect power cord to
12 volt battery. EMPTY WASTE light should be on. Press EMPTY WASTE button. Waste pump should
run until fluid reaches zero level and then automatically shut off.
NOTE: BOTH TANKS SHOULD BE @ ZERO WHEN THE UNIT IS STORED