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FIG 14

C: WARNING LIGHT 
At this zero pressure stage (FIGS 4b and 4c). switch on the ignition, (or side lights as applicable) and check if warning light comes on. If not, then check: 
1 : The bulb 
2 : The wiring 
3: The pressure switch 

It is most important to repair any faults at this stage

D: PRIMING 
NOTE: Before starting to prime and bleed the system, ALWAYS make sure the trailer is level; this is to ensure all air is expelled from both ends of the rams. 
If the valve manifold or the valve block have been drained completely; then first refer to the section E or F. 

To prime or bleed the system, a hand operated pump will need to be connected to the priming port, (see FIG 15 early type). (FIG 16 later type).

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