Instruction Manual

Service guide | Disassembling and assembling PAHT and PAHT G 50-90

180R9172 | 521B1092 | AX234886502908en-000402 | 2022.10

2. Hold a ruler against surface of plate and

check tightness against a light source.

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

are not broken and do not show severe

wear.

1. Neither valve plate nor thrust plate must

show any sign of wear.

5. Play in ball and socket joint must not

exceed 0.1 mm.

6. Thickness of piston shoes must be at least

4.4 mm.

4. Check that surface of swash plate is

smooth and without any large

scratches (depth more than 0.1 mm).

8. Check bushes in cylinderbarrel for wear

and scratches.

9. Check main bearing for wear and scratches.

7. Hold a ruler against surfaces of piston

shoes to check that the surfaces are even

and smooth and without any scratches.

It is acceptable that the (black) treated

surfaces of the pistons are partly worn.

3. Inspection

Valve and thrust plate

Swash plate Pistons