General Information; Gas Fuel Systems - Toro Workman 3000 Series Service Manual

General Information

Precautions for Working on Liquid Propane (LP) Gas Fuel Systems
CAUTION
Before starting work on any liquid propane sys­
tem, disconnect the negative cable (black) from
the battery.
CAUTION
Occupants should not remain in the vehicle
Refueling should be done by
while refueling.
qualified personnel only.
DANGER
**Liquid propane (LP) gas is highly flammable.
**Perform service work and refueling on an LP
gas fuel system in an open or well ventilated
area. NEVER FiLL FUEL TANK INDOORS! Never
allow the gas to escape into a closed area.
gas is heavier than air and may settle in low
places.
**Do not smoke. Avoid open flames and sparks
that might ignite the fuel!
**Avoid cutting and welding operations near LP
gas systems.
**Handle LP gas containers carefully. Do not
drop or drag.
**Installation and repair should be done by quali­
fied service personnel only.
**Never test for leaks with a flame. Use soap suds
or an approved leak detector to test.
**Do not fill tanks that are not properly labeled for
LP gas use. Do not put LP gas into tanks with a
service pressure capacity of less than 240 PSI.
Do not tamper with valves or fittings in the LP gas
system.
WARNING
Avoid body contact with liquid fuel; its freezing ca­
pability can have the same effect as a severe burn.
Workman 3000/4000 Series
LP gas must be treated with care. This fuel is nat­
urally odorless and invisible. An identifying odor
has been added to LP gas so the presence of the
gas can be quickly detected. When escaping LP
gas is detected, take the following steps:
1. Shut off tank service valves immediately.
2. Eliminate all possible sources of ignition.
3. Get qualified LP gas personnel to fix the
problem.
In case of a fire with LP gas, take the following
steps:
1. Stop flow of gas immediately. Never put out
flame, unless the gas can be shut off.
2. Clear immediate area of all people and notify
fire department.
3. After gas flow is stopped, put out the fire.
Usually the fire will stop once the gas flow is
LP
stopped. Use carbon dioxide and dry chemical
fire extinguishers. DO NOT USE CARBON TET-
RACHLORIDE
ETC.); these will produce a poisonous gas.
4. If gas flow can not be stopped immediately,
direct water on tanks to keep them cool. Do not
try to put out fire with water.
Service on liquid propane fuel systems may re­
quire certification or special training. Check lo­
cal and state regulations before performing any
service or maintenance on LP gas systems.
1. Clean machine thoroughly before disconnecting or
disassembling any LP gas system components. Always
keep in mind the need for cleanliness when working on
LP gas equipment. Contamination can cause early
equipment failure.
2. Install fittings finger tight and far enough to make
sure that they are not cross–threaded, then tighten fit­
tings with a wrench.
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Rev. D
CAUTION
WARNING
EXTINGUISHERS (PYRENE,
CAUTION
Liquid Propane Gas Conversion Kit