Service Manual

Workman HDX Auto
Page 3 − 3
Kohler Gasoline Engine
General Information
This Chapter gives information about specifications and
repair of the Kohler engine used in the Workman HDX
Auto vehicle.
General engine maintenance procedures are described
in your Operator’s Manual. Information on engine trou-
bleshooting, testing, disassembly and assembly is iden-
tified in the Kohler Aegis Service Manual that is included
at the end of this section.
Most repairs and adjustments require tools which are
commonly available in many service shops. Special
tools are described in the Kohler Aegis Service Manual.
The use of some specialized test equipment is ex-
plained. However, the cost of the test equipment and the
specialized nature of some repairs may dictate that the
work be done at an engine repair facility.
Service and repair parts for Kohler engines are supplied
through your local Toro distributor. Be prepared to pro-
vide your distributor with both the Toro and Kohler model
and serial numbers.
Operator’s Manual
The Workman Operator’s Manual provides information
regarding the operation, general maintenance and
maintenance intervals for your Workman HDX Auto ve-
hicle. The Kohler Owner’s Manual includes information
specific to the engine used in your Workman. Refer to
these publications for additional information when ser-
vicing the machine.
Kohler Aegis Service Manual
The engine that powers your Workman HDX Auto
vehicle is a Kohler model LH775. The Kohler Aegis Ser-
vice Manual should be used when servicing the engine
on your Workman.
Engine Electronic Control Unit (ECU)
The Kohler Aegis engine that powers your Workman
uses an electronic control unit (ECU) for engine man-
agement. All wire harness electrical connectors should
be plugged into the ECU before the machine ignition
switch is moved from the OFF position to either the RUN
or START position.
If the engine ECU is to be disconnected for any reason,
make sure that the ignition switch is in the OFF position
with the key removed before disconnecting the engine
ECU. Also, to prevent possible ECU damage when
welding on the machine, disconnect and remove the en-
gine ECU from the machine before welding.
Figure 1
1. Engine 2. Engine ECU
2
1
Gasoline Engine
Kohler