MAINTENANCE MANUAL
184
STE 85357
Fig. 4.48 Axis 3 bracket and pulley (THL800, THL900, THL1000)
7)
Mount the ball screw nut and the ball screw spline shaft together through the
ball spline nut, and then mount it to the axis 3 bracket with six (6) hexagon
socket head bolts (M4 x 12). At this time, align the phases of both markings
put on the tip of the ball spline nut and the ball screw spline shaft. In this case,
take care of the direction of the tap for draw out.
8)
Mount a stopper at a position 40 mm from the bottom of the ball screw spline
shaft.
When mounting each stopper, align its split line with the left end of the spline
groove.
9)
Manually move the shaft several times in the vertical direction and make sure
that the movement is smooth. After that, tighten the bolt temporarily clamping
the axis 3 bracket. In this case, fix it by holding the axis 3 bracket to prevent it
from moving.
Stopper
Hexagon socket head bolts
M4 x 16 x 4 pcs.
(Apply medium strength Loctite.)
Hexagon socket head bolts
M5 x 20 x 4 pcs.
(Apply medium strength Loctite.)
Washer
Axis 3 nut pulley
Ball screw nut
Axis 3 bracket