H300XL H330XL H360XL [C019]
2200 SRM 2
When using an arc welder, always disconnect
the ground lead from the lift truck battery to
prevent alternator or battery damage. Attach
the welding ground clamp as close to the weld
area as possible to prevent welding current
from damaging the bearings.
The diodes and resistors in the electrical sys-
tem can be damaged if the following cautions
are not followed:
• Do not disconnect the battery when the en-
gine is running. The voltage surge can dam-
age the diodes and resistors in the electrical
• Do not disconnect an electric wire before the
engine is stopped and the switches are "OFF".
• Do not cause a short-circuit by connecting
the electric wires to the wrong terminals.
Make sure a correct identification is made of
the wire before it is connected.
• Make sure a battery is the correct voltage and
polarity before it is connected.
• Do not check for current flow by making a
spark because the electronic components can
NOTE: Information on alternators manufactured
outside the United States is in the SRM (Service
Repair Manual) sections for lift trucks that use those
This section has a description and the repair proce-
dures for the alternator with a voltage regulator as
part of the alternator.
NOTE: For this SRM section, the alternators are in
two groups, Type A and Type B. The two types are
very similar, but the Type A alternators have a set of
three diodes (diode set) as well as the diode bridge.
The Type B alternator has zener diodes as part of
the diodes in the diode bridge. This alternator does
not have a diode set, but does have an additional fan
inside the rear housing. The basic operation of both
types is very similar.
The alternator generates an alternating current
when the engine is running. The alternator is either
ON or OFF. The alternator generates maximum
current when it is ON and no current when i