DS21 & DS21M / DS19A & DS19MA Repair Manual — Page 275

159 25, Connect up: - the pipe (1) (pump suction pipe) to the plunger tube, - the return pipe (3) from the centrifugal regulator return, - the return pipe (2) from the clutch re- engagement control, Tighten the clips, Under each clip insert a rubber bush, 26. Fill up the reservoir and prime the high pressure pump (see Op. DX.391-1, para. 12). 27, Loosen the bleed screw. Start up the engine.