Cub Cadet RZT-S Series - Manual (Page 81)

Electrical System
75
7. If the regulator/rectifier fails any one of these tests, replace it with a new one.
8. Check the DC amperage output of the regulator/recti-
fier using a an Ammeter of sufficient capacity or a DC
Shunt tool and a volt meter set to read on the millivolt
scale, as described in the TOOLS section of this
chapter.
9. If the regulator/rectifier passes all of these tests, but
the battery is not charging, check the circuit between
the regulator/rectifier DC output (B+) terminal and the
battery positive post for a voltage drop.
See Figure 7.23.
• The harness connector, the 20A fuse, and the hot
post on the starter solenoid all lie between the reg-
ulator/rectifier and the battery.
Test # Pos. Probe COM. Probe Results
1 Housing B+ O.L. (infinite resistance)
2 Housing AC 1 O.L. (infinite resistance)
3 Housing AC2 > 1.0
Ω (5 second delay)
4 B+ AC1 0
Ω (Perfect continuity)
5 B+ AC2 > 1.0
Ω
6 B+ Housing > 1.0
Ω
7 AC1 B+ 0
Ω (Perfect continuity)
8 AC1 AC2 > 1.0
Ω
9 AC1 Housing > 1.0
Ω
10 AC2 B+ O.L. (infinite resistance)
11 AC2 AC1 O.L. (infinite resistance)
12 AC2 Housing > 1.0
Ω
Figure 7.23