Front Hub Enlargement Limiter (Front Shaft Drive Models); Hub Engagement Limiter Rpm Test - Polaris Magnum 2x4 Service Manual

ELECTRICAL
All Wheel Drive System
Front Hub Engagement Limiter (Front Shaft Drive Models)
Front Shaft Drive Models are equipped with a front hub engagement limiter system which prevents engagement
of All Wheel Drive (AWD) if engine RPM is above 4000. This is accomplished by the use of an LR83 module
(attached to the bulkhead under the front cover), which monitors engine RPM via the Yellow/Red alternator wire.
AWD must be selected (button pushed) prior to reaching 4000 RPM, or the Hub Limiter Module will electronically
disconnect the ground path for the front hub coils (SrownIWhite wire) until RPM falls below 4000. If AWD is se-
lected (button pushed) below 4000 RPM, the connection to ground will be maintained by the module at any RPM.
The ground path is interrupted only if an attempt is made to engage the front hubs with engine RPM above 4000.
Refer to the diagram and test procedure below.
WARNING: The engagement limiter is a safety feature designed to protect the front drive components and should
never be disabled, except for testing purposes. Serious injury or death may result if the limiter system is disabled
or left in the testing mode. Return all wires to the proper terminal on the terminal board (according to color) and
verify proper neutral light operation after testing.
CAUTION: The speed limiter control module may be permanently damaged if the machine is operated with the
voltage regulator damaged and/or the battery disconnected.
*
Indicates Terminal Board Connection
Y I R - - - - - - - - - 1
Blk
RIW
R /W
SHIFTER
BRNIW
AWD
HUB
CO I LS
Hub Engagement Limiter RPM Test
Perlorm this test to check hub engagement limiter RPM.
WI CH
1 . To perlorm this test, the neutral light must function
properly and the battery must be in a good state of
charge. Turn the key and engine stop switch on. Shift
transmission to neutral and check for proper neutral light
function. Repair neutral light if necessary before
proceeding. Turn key to OFF position.
2. Remove front rack and terminal board cover (where
applicable).
3. Verify all electrical connections are clean, tight, and on
the proper terminal. Make sure voltage is present on the
RedlWhite terminal with the key on.
4. Locate shift selector switch harness (RIW, PUR,GRYIW,
and GRNIW wires.
5. Locate GreenIWhite wire in switch harness and follow it
to the terminal board. Disconnect this GreenIWhite wire
from the board and connect it to GraylWhite terminal on
terminal board.
12/97
10.36
GrnlW from Switch
Connect To GrylW
Terminal~
AWD LAMP
(RIGHT HANDLEBAR)
Terminal Soard
NEUTRAL
LAMP
BRN
Speed Limiter
Module LR
10 Number
1
Polaris Industries Inc.