Advanced Search

The Green Industry's Resource Center

Old 09-09-2007, 01:29 PM
shop22 shop22 is offline
LawnSite Member
Join Date: Aug 2003
Location: northeast
Posts: 134
kohler charging problem

It's on a bobcat z that we have in the shop. spec is a 67531 for the motor. Checked ac at staor and got 28 even. checked at b+ on regulator with unit runnign ang got 13.5 or 6 but when checked at battery only get 12.7 or 8 and when clutch is engaged battery shows 12.3 or 4. I tried another regulator i had at the shop and identical readings. I did a continuity test from purple wire at b+ on regulator to positive of battery and there is continuity, with the key in the on position. Any thoughts? I know i should be in the mid 13's when no pto and high 12's when it's on.
Reply With Quote
Old 09-09-2007, 04:48 PM
Bill Kapaun's Avatar
Bill Kapaun Bill Kapaun is offline
LawnSite Senior Member
Join Date: Oct 2001
Location: Albany, Orygun
Posts: 846
I would check the fuses.
You state the Battery V decreases when you engage the PTO, but how about the V at the regulator? IF it stays the same, (PTO ON & OFF) I'd feel even more strongly that it's a fuse or open circuit in that wire.
Without model#'s, I can't really look at the correct schematic.
Reply With Quote
Old 09-09-2007, 05:46 PM
shop22 shop22 is offline
LawnSite Member
Join Date: Aug 2003
Location: northeast
Posts: 134
fuse is fine, I made sure of that. Voltage at the regulator went down to the high 12's from the mid 13's. I know its an older 60" bobcat but I don't have the model in front of me.
Reply With Quote
Old 09-09-2007, 06:33 PM
Restrorob's Avatar
Restrorob Restrorob is offline
LawnSite Fanatic
Join Date: Apr 2005
Location: Show'n my truck off !
Posts: 11,026
With a good fully charged battery your charging system appears to be working properly.

The PTO clutch could be drawing too many amps which is the reason for such a drop when engaged.

Check the below post out about adjusting the clutch;
Originally Posted by piston slapper View Post
You never learn anything until you admit you don't know it all...
Originally Posted by MannsLawnService View Post
some times the man in my mirror isn't so smart...
"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!
Reply With Quote
Old 09-09-2007, 06:41 PM
shop22 shop22 is offline
LawnSite Member
Join Date: Aug 2003
Location: northeast
Posts: 134
model is 942202 serial 942202209. I figured the system seemed to be working just not giving me the total i normally see. I was gonna check the clutch on monday cause I got the unit late saturday.
Reply With Quote
Old 09-10-2007, 09:42 PM
fixer67's Avatar
fixer67 fixer67 is offline
LawnSite Silver Member
Join Date: Apr 2004
Location: Tryon NC
Posts: 2,155
Now this is odd. I had this same problem today on a Walker with a Kohler. The problem was in the grounding. Put your NEG test meter lead on the regulator case. Then the POS meter lead on the POS battery post. If you get the voltage you did at the POS terminal at the regulator then take the NEG meter lead and put it on the NEG battery post. If the voltage drops then the ground is the problem.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Layout Style:

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Grand View Media
All times are GMT -4. The time now is 07:48 AM.

Page generated in 0.12607 seconds with 10 queries