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Service guide | Disassembling and assembling PAH 50-100

Inspection

2.1. Port plate and thrust plate

1. Neither port plate nor thrust plate must

show any sign of wear.

3. Check that both O-rings and back-up rings

are not broken and do not show severe

wear.

2.2. Pistons

1. The play in the ball and socket joint must

not exceed 0.1 mm.

2. The thickness of the piston shoes must be

at least 4.3 mm.

180R9098 | 521B1072 | DKCFN.PI.011.NC5.02 | 06.2017

2. Hold a ruler against the surface of the

plates and check the tightness against a

light source.

3. Hold a ruler against the surfaces of the

piston shoes to check that the surfaces

are even and smooth and without any

scratches.

4. It is acceptable that the (black) treated

surfaces of the pistons are partly worn.