To Deactivate Lock Device
1.Disengage other provided holding devices.
2.Switch the user interface to "release" position. The "locked" indicator lamp will deactivate and the power unit will return brake system to static system pressure.
3.Release mechanical parking brake.
Using 691 as an Interlock
NOTE
The 691 Interlock can be activated by the rocker switch (if applicable) whether the vehicle’s ignition is on or off as long as the battery connection exists.
To Activate
1.Bring vehicle to a complete stop.
2.Set mechanical parking brake.
3.Satisfy the conditions that activate remote input.
To Deactivate
1.Disengage other provided holding devices.
2.Deactivate remote input.
3.Release mechanical holding devices.
NOTE
To release the brakes in case of an electrical failure complete the following steps:
A.Remove 691 System fuse.
B.Apply other provided holding devices and mechanical parking brake to keep the vehicle from rolling.
C.Release residual pressure from 691 System by carefully loosening bleeder screw nearest the power unit inlet port of 691 Actuator. Be careful when opening the bleeder screw, it may be under high pressure.
D.Disengage other provided holding devices.
E.Release mechanical parking brake.
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