Westerbeke WPDS-20 Technical Manual page 89

S.24
3.
4.
5.
6.
7.
8.
9.
10.
If
removed for replacement. press new oil seal (79) into reduction gear
housing.
Place flanged shaft over ring gear (71) and line up holes in flange with
those in ring gear.
Place lockwasher over capscrew and insert capscrew into hole in flanged
shaft and secure flanged shaft to ring gear.
Press ball bearing (84) onto flanged shaft. Place spacer (73) over shaft
next to ball bearing and place seal washer (74) over shaft next to spacer.
Install Woodruff key (80) into keyway in flanged shaft.
Place reduction gear housing over small end of flanged shaft and start
ball bearing (84) on flanged shaft into bore in housing by tapping housing
with a soft mallet.
Turn unit over with small end of housing down and press on center of
flanged shaft until spacer (73) is seated against ball bearing (84) in reduc-
tion housing.
Support unit on inside of flanged shaft with large end of unit down and
press gear half coupling (75) onto shaft end and into ball bearing until
coupling is seated against ball bearing. Care must be taken to line up
keyway in coupling and key in shaft before pressing together.
11. Place lockwasher (78) over end of flanged shaft with tang on inside of
lockwasher in slot on flanged shaft. Place locknut (77) onto shaft and
secure using suitable wrench.
12. Bend one tang of lockwasher into slot on locknut.
13. Install two studs 3 1/2 inches long into two opposite holes in reduction
adapter plate.
14. Position redu.ction gear assembly over studs with oil drain plug at bottom
of housing and slide onto reduction drive ge8.r.
It
may be necessary to
rotate reduction gear slightly to properly mesh gear teeth.
15. Install lockwashers and capscrews around flange of reduction gear hous-
ing and tighten uniformly.
\
\'-----..
~
'v __
~/
---...---~ -
------------
~~-----------
:?6
,