TM 5-3810-307-24-1-2
6.
INSTRUCTIONS FOR REPAIRING EXTERNAL LEAKS
NOTE
The measuring and adjusting tools used for reconditioning must be
regularly subjected to a precision checkup.
6.1
Replacing Shaft Sealing Rings on Lower Steering Spindle
a.
Remove lower fastening screw on universal joint. Pull the universal joint from splines of the
lower steering spindle (93)* Remove protective cap (102). Release locking ring (98) and pull
shaft sealing rings (100 and 101) out of end flange (95).
b.
Press new shaft sealing rings (100 and 101) into the end flange (tool 5) with the sealing lips
facing into the housing [shaft sealing ring (100) with the dust-excluder lip facing outward].
Pack the space between the sealing lip and the dust-excluder lip with Texando FO 20 grease
or an equivalent consistency-class 2 calcium-compound grease. Insert circlip (98). Install
protective cap (102). Do not attempt to remove or install the steering wheel by applying axial
blows to the steering spindle.
6.2
Replacing Shaft Sealing Rings on Drive Pinion on Versions with Angular Gears
a.
Remove lower fastening screw on universal joint. Pull universal joint from the splines of bevel
gear (306).
b.
Remove protective cap (314).
c.
Loosen slot nut (313) and remove adjusting screw (321) from housing (301).
d.
Force shaft sealing ring (310 and 310.1) from adjusting screw. Pull o-ring (308) from housing
groove.
NOTE
Do not pull bevel gear (306) out of housing, since otherwise the tooth
mesh, which must be free of play in straight-ahead driving position of
steering gear, is no longer correct.
e.
Install 0-ring (308) in the radial groove of the case behind the threaded hole. Using tool 6,
press the low shaft sealing rings (310 and 310.1) into the adjuster screw (312) with the sealing
lips facing into the case (beginning with the dust-excluder-lip sealing ring). Pack the spaces
between the sealing lips with Texando FO 20 grease or an equivalent, consistency-class 2
calcium complex grease.
f.
Wind a strip of paper around bevel gear (6) in such a way that the splines and the radial
groove are covered (to protect the sealing lips of the shaft sealing rings, or use tool 7. Insert
adjuster screw (312) and tighten. Screw on slotted nut (313) and tighten to 50 Nm. Apply
Texando FO 20 or an equivalent, consistency-class 2 calcium-complex grease to the shaft
sealing ring. Push dust cap (102) into place.
*)
Numbers in brackets refer to illustrations in Section 12.
H-20 Change-1
