Komatsu 830E-AC Shop Manual page 183

Push the pitot tubes to the bottom of the hole.
The outer end of the tube should be located well
within the pulley-locating shoulder of the
bearing retainer. Rotate the tube so the open,
bent end faces in a counterclockwise direction
and is exactly parallel to the surface of the
bearing retainer.
screwdriver inserted in the end of the tube can
be used as an alignment gage).
Install the second pitot tube in the same manner
as the first. Stake each pitot tube in three places
(at the 9, 12, and 3 o'clock positions) to prevent
the tubes from rotating in operation.
FIGURE 7-65.
25. Install both hook-type seal rings (17) in the
grooves in the shaft. Rotate the rings so the slits
in the rings are 180 degrees apart from one
another.
C07001
(A large phillips-head
Fan Clutch
FIGURE 7-66.
26. Lubricate the seal ring grooves of piston (23)
with an oil-soluble lubricant such as engine
assembly grease. Install small seal ring (24) in
the inside groove and large seal ring (22) in the
outside groove. Refer to Figure 7-66 for proper
orientation.
FIGURE 7-67.
27. Lubricate the external surfaces of seal rings
(22) and (24) with an oil-soluble lubricant such
as engine assembly grease. Also lubricate the
seal mating surfaces in the pulley adapter.
C7-29