Westerbeke WPDS-20 Technical Manual page 86

S.21
SA1 AND SAO
MANUAL CLUTCH
ADJUSTMENTS
With the transmission secured to the engine,
replace all water lines, etc. However, do
not connect the shifting linkage until all the
adjustments have been made and are satis-
factori Iy
tested~
Before securing the propeller half coupling to
the gear half coupling, check to make certain
that the couplings do not run out more than
.002 inches wi th respect to each other. Study
section "AI ignment to Engine
II
on Pages
14 and 15 of Technical Manual.
The transmission should be filled with new oil
as specified under lubrication.
The transmission can be partially adjusted be-
fore the eng i ne has been run. However, a
complete running test is necessary to satisfact-
ori Iy determine whether the adjustments have
been properly made.
The preliminary adjustments for the forward
drive arE'. made as follows: remove reverse
cover plate, rotate pressure finger assembly
and screw coli ar (37) unti I lock screw (42)
is up and facing you. Then, working care-
fully to avoid dropping either screw or tools
into clutch housing --
Typical Forward
Clutch Adjust-
ment (SAl
&
SAO)
I. Back out the lockscrew (42) unti I the dog
on the end of the lockscrew is clear of the
hole in the pressure plate (35).
2. Rotate the screw Collar (37) to the right
until the lockscrew (42) is opposite the
next hole in the pressure plate (35).
3. Tighten the lockscrew making certain that
the dog on the end properly enters the hole
in the pressure pi ate.
4. Continue this until a decided effort is re-
quired to shift into forward (approximately
26 foot pounds).
48
~r:F===4---- 50
SAl Reverse
Adjustment
(Top View)
The preliminary adjustments for the reverse
drive are made as follows:
1. Loosen the locknut (50) on the inside of the
upright ear at the top of the reverse band.
2. Tighten the adjusting nut (50) on the outside
of the ear until both nuts are again tight
against the ear of the reverse band.
3. Repeat until a decided snap is required to
shift into reverse.
4. Do 'Jot tamper with adjustment of link (48).
5. For Four-99s and early Four-107s there was
a cam operated reverse adjustment. Simply
tum screw head (103) clockwise one flat at
a time unti I satisfactory reverse engagement
is obtained (see Figure 3).