Backlash Adjustment - Bevel Gears A And B - TOHATSU NB-1000 Service Manual

SECTION 6
3. Eliminate all looseness between driveshaft and gearcase
36
using one of the following methods:
• Lift driveshaft upward and tap down on gearcase with rubber mallet.
• Slide acompression spring (obtain locally) over driveshaft and seat
onto lower pump case. Install backlash measuring tool clamp
assembly (Part No. 3B7-72720-0) on driveshaft. Compress the
spring and tighten the clamp to maintain the spring compression
and provide constant upward pressure against driveshaft.
With alI looseness eliminated, measure the gap between collar (7)
and bevel gear B using thickness gauge set (8) (Part No. 353-
72251-0). If gap measurement is not within 0.023 - 0.025 in [0.60 -
0.64 mm], remove the lower pump case and install correct size
shim onto roller bearing outer race at location (9).
Refer to current Parts Catalog for shim availability.
4. If shimming was necessary re-install the lower pump case before
proceeding with Backlash Adjustment - Bevel Gears A and B.

Backlash Adjustment - Bevel Gears A and B

Obtain backlash measuring tools in reference to
page 6-4 table for special tool requirements.
6-30
NOTE
NOTE
1-/ 2-Cylinder