Pusher Structure Hardware - Komatsu 930E-2 Shop Manual

PUSHER STRUCTURE HARDWARE

(FIGURE 8-2)
Quantity
Pusher Structure Capscrews
24**
KC7095 (1.25" UNF x 8", Grade 8)
Flat Washers (Hardened)
72
WA0366 (1.25")
** 15 capscrews are normally used,
if steering arm is not completely removed.
NOTE -
Use the Hardened Flat Washers under heads of
Pusher Structure Capscrews to prevent galling.
Lubricant such as chassis lube on the washers
and threads is recommended.
5. Install the remaining capscrews, and progres-
sively increase the torque in a circular pattern until
the tapered piston breaks loose, or the specified
1580 ft. lbs. torque on the 1.25" capscrew is
reached.
6. If the specified torque is reached and the tapered
piston is still not loose, apply heat at 2 places
(180° opposite) to the spindle.
Do not exceed 850°F saturated temperature of
the spindle.
7. Tighten capscrews again to the maximum speci-
fied torque, and using a large hammer and heat
at the specified locations, carefully tap the spindle
on the top surface.
NOTE: In extreme cases, it may be necessary to
remove additional steering arm retaining capscrews
and use additional pusher capscrews to apply more
force.
M8-6
DESCRIPTION
Special Tools M08012 9/99