Terex TR60 Maintenance Manual page 307

ARBOR PRESS
HERE
Fig. 12 - Tapered Bearing Installation
taping driveshaft (35) close to pump housing (16) and
work toward the end of driveshaft (35). Install new
shaft seal (34) in position over driveshaft (35) and
press evenly into pump housing (16). Use shaft seal
driver shown in Fig. 17. Shaft seal (34) must be
positioned just below retaining ring (33) groove.
Install retaining ring (33) into pump housing (16). Use
internal circlip pliers to install retaining ring (33).
Assembly of Housing Parts
Note: If a new tapered bearing (47), driveshaft (35),
valve block (15) or pump housing (16) is required, a
complete pre-load adjustment must be performed. If
the same parts are returned to service, the shaft
bearing pre-load adjustment can be omitted. The
same procedure applies to yoke (42) and its
associated bearings.
1. If tapered bearing (47) requires replacement,
install a new outer race into pump housing (16). Use
tool shown in Fig. 20 to press bearing race in place.
Make sure outer race is orientated properly to accept
the inner race of bearing before pressing into pump
housing (16). The outer race must be bottomed
against the shoulder of pump housing (16) on
completion of press.
2. Place pump housing (16) on a flat surface with
SM 1204 2-98
shaft seal (34) end down. Lay inner race of tapered
SM - 385
bearing (47) into the outer race. Install yoke spring
(46) and seat (45) into pump housing (16).
3. Position the yoke pintles properly and install yoke
(42) into pump housing (16). Assemble yoke bearings,
races and spacers as follows:
a) Assemble inner race of tapered bearings (41) on
each end of yoke (42) and insert outer race of tapered
bearing (41).
b) Install bearing spacer (40) at one pintle end.
c) Install new 'O' ring (39) against bearing spacer (40)
SHOULDER
into the groove, then install a 0.025 mm (0.010 in)
shim (38) under pintle cover (37). Install four screws
(36) and torque to 20 - 21 Nm (15 - 16 lbf ft).
Note: Early designs used a screw and washer
38 mm (1.5 in)
arrangement. These should be torque tightened to
HEAVY WALL
TUBING
13 - 14 Nm (9 - 10 lbf ft).
150 mm (6 in)
LONG
d) Set pump housing (16) on its side so the other
SEE FIG. 16.
pintle is up. Install bearing spacer (40) and rotate yoke
(42) back and forth to seat inner races of tapered
bearings (41) within the outer races. With bearing
spacer (40) fully in against the outer race, measure
the height of the spacer with respect to pump housing
(16) pintle face in two places (180° apart). Use a
depth micrometer to perform this measurement. See
Fig. 13. Average the readings to obtain a nominal
value. A 0.178 - 0.228 mm (0.007 - 0.009 in) pre-load
is required on tapered bearings (41). Calculate the
Fig. 13 - Measuring Height Of Bearing Spacer With
Steering System - Steering Pump
Respect To The Housing Face
Section 220-0050
SM - 386
9