DS21 & DS21M / DS19A & DS19MA Repair Manual — Page 241

37. Stripping the cover. a) Remove the cylinder assemblies. b) Compress the piston springs using tool 3171-T, or if not available use a screw (B) (length 80 mm, x 4mm diameter with plain washer and locknut, 5.75 mm). c) Remove the screw (2) securing the neutral position stop block (3). Remove the stop block. Remove the stop screws (1) from the cylinders. Free the cylinder piston assemblies via the inside of the cover.