Cub Cadet SLTX1000 Series - Manual (Page 187)

Electrical System
181
Ammeters and specialized charging system testers
Inductive ammeters or “amp clamps” are available in
many forms. Some are as simple as a gauge to be held
against the circuit in question when it is energized. The
operating principle is based on magnetic field induced by
the current flow. See Figure 7.53.
There are two primary reasons to measure amperage.
The first is to check the output of a charging system or bat-
tery. The second is to check the performance of a compo-
nent that draws a substantial flow of power, typically a
motor or clutch.
Briggs and Stratton sells a DC Shunt that converts
amperage into a reading on the millivolt scale of a DMM.
Briggs and Stratton part # 19359 covers low amperage
systems, while part # 19468 tests higher amperage sys-
tems. The operating principle is based on Ohm’s Law, as
described earlier in this section. See Figure 7.54.
NOTE: Usage of the DC Shunt tool is detailed in the 1995
and 1999 editions of their Update Seminar materi-
als.
Figure 7.53
DMM with inductive
ammeter feature
Inductive ammeter
Figure 7.54
To negative
battery post
Connect to
battery end of
ground cable
DMM on
300Mv
scale
calibrated
resistance:
creates
amperage
reading