Installation Manual
UL
POWER
UL350i UL350i
F
UL350i
S
UL 350i
HPS
350i
SA
MI 350A01 Revision No: 7
Date:
2014-09-15
Page:
51
of
60
1,2kW
Starter motor
The electric starter engine (1) is mounted on the top of the engine and
drives the ring gear (2) at the back of the engine. The motor is activated
by engaging the starter button (the master switch has to be on) which
trips the integrated solenoid (3), hence current flows from the battery
to the motor.
Connect the plus terminal coming from the battery to the solenoid (see image below left) with a
cable of at least 25mm² (3AWG). Use an M8 lock nut. Wiring for the starter button should be at
least 1.5mm² (14AWG or smaller). Make sure to insulate both connections to prevent short circuit by
touching with a metal object and making contact with the engine/ground!
Ground to starter motor and solenoid is provided via engine block. Ground cable is attached to
engine mount plate with an M6 bolt (see image above right). Cable thickness should be at least
16mm² (5AWG or smaller).
Battery
In a standard installation there has to be one battery of 12V/18Ah.
Additional wiring
The ECU (Engine Control Unit) used for the
UL
350
engine has been specially developed, and
thoroughly tested. Every possible "over voltage" or short-circuit has been simulated to be sure that
the ECU goes on working in every condition.
However, for extreme safety, we offer a completely redundant, dual channel ECU combination.
(See page 41)
12V DC BUSBAR
BATTERY
+
-
STARTER
BUTTON
MASTER
SWITCH
FUSE
30A
START
SOLENOID
STARTER
MOTOR
(1 )
(3 )
(2 )
Battery (+)
Ignition
Button (+)
Summary of Contents for UL35Oi
Page 2: ......
