Westerbeke 30 - Page 153

V.32
2. Sticking
3. Inaccurate
-2-
1. Check for proper A.C. voltage between IItach inp.1I
terminal and (-) terminal.
2.
Check for good ground connection between meter
(-)
Terminal and alternator.
3. Check alternator is well grounded to engine
block
at alternator pivot bolt.
1. With hand-held tach on front crankshaft pulley
retaining nut or strobe type tach read front
crank shaft pulley
R.P.M. Set engine R.P.M.
with hand or strobe tach at 1500-1800 R.P.M.
2. Adjust tachometer with small Phillips type
screwdriver through calibration access hole
in rear of tachometer covered with
translticent
plug. Zero tach and bring to R.P.M. set by
strobe or hand tach. (Verify R.P.M. at idle
and at high speed 2500-3000 R.P.M.) (Adjust
tach
as needed.)
( + ) Terminal
(Battery
Voltage-DC)
Tachometer Input
(AC Voltag~)