Remove the wheel brake cylinder (34 21 070).
Dismantle the cylinder.
Clean all parts with alcohol.
Do not re-use the sleeves.
Components: wheel cylinder housing, coil spring (2),
sleeves (3), piston (4), protecting caps (5), bleed valve (6),
dust cap (7).
When installing: To simplify assembly and provide cor-
rosion protection, coat the cylinder bore, piston rubbing
surface and sleeves with a very thin layer of ATE cylinder
paste.


34 21 070

When installing: Re-adjust brake shoes with the adjusting
cams, using 6038 special wrench.