1. The dog to the front drive will not disengage unless the "yellow knob" is pulled up either by hand or spring when the red knob is pulled back, and held there when it is pushed forward again. (I must admit it took me years to get my mind around how this is actually achieved). The yellow knob, when pulled up engages a pin in the "pivot shaft when the red knob is pulled back, so that when the red knob is pushed forward again a spring is compressed that will disengage the front drive dog as soon as there is no load on it.
2. Reverse and first both have straight cut gears, with reverse having three engaged straight cut gears, so reverse is always noisy compared to other gears. Also, being sliding engagement gears, both reverse and first are likely to be damaged by careless or unskilled driving.
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
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