Danfoss MAH Series Service Manual page 7

Service guide | Disassembling and assembling MAH 6.3 - 12.5
2. Inspection 2.1. Port plate and thrust plate
1. Neither port plate nor thrust plate must
show any sign of wear.
2.2. Pistons
1. The thickness of the piston shoes must be
at least 3.4 mm.
The play in the ball and socket joint must
not exceed 0.1 mm.
2.3 Cylinder barrel
1. Check outer bearing surface for large wear
grooves (not critical).
Check that bushings are free from seizure
and large scratches.
Ensure that pistons can move freely in
bushings.
180R9152 | AX357937856579en-000402 | 07.2021
2. Hold a ruler against the surface of the
plates and check the tightness against a
light source.
2. Hold a ruler against the surfaces of the
piston shoes to check that the surfaces
are even and smooth and without any
scratches.
2.4 Housing
1. Check that swash plate surface is smooth
and without any big scratches (depth
more than 0.1 mm).
7