
MAINTENANCE MANUAL
170
STE 85357
Fig. 4.36 Dismounting harness guide and support plate (THL800, THL900, THL1000)
3)
Mount a new belt. Temporarily clamp axis 3 bracket on the axis 2 arm using
the four (4) hexagon socket head bolts (M4 x 16). After the ball nut and ball
screw spline shaft removed in step 1) has been passed through the axis 3 timing
belt, fix them in position. Then after routing the axes 3 and 4 timing belts,
mount the ball screw spline shaft. For the mounting of the ball screw spline
shaft, see "4.6.5 Mounting of ball screw spline shaft".
Fig. 4.37 Mounting ball screw shaft (THL800, THL900, THL1000)
Axis 4
motor assembly
[Bolts for adjusting axis 4 tension]
M4 x 16 x 2 pcs.
Hexagon nuts
Axis 4 timing belt
[Axis 4 motor plate mounting bolt]
Flange head bolt
M4 x 10 x 4 pcs.
Ball screw spline shaft
Hexagon socket head bolts
M4 x 16 x 4 pcs.
(Apply medium strength Loctite.)
Axis 3 timing belt
Axis 4 timing belt
Ball screw nut