Tennant 255 Series II, Operator'S Manual, Page: 86 / 128

MAINTENANCE
255 SERIES II MM189 (12---89)
3-26
LPG FUEL TROUBLESHOOTING
Problem Cause Remedy
Engine will not start Out of fuel Replace fuel tank with full one
Service valve opened too Close valve and reopen slowly
quickly --- engaging safety valve
Plugged fuel filter
Replace filter
Kinked or restricted fuel Straighten or replace fuel line
line
Engine out of tune
Tune-up engine
Oil pressure switch failure Replace oil pressure switch
Fuel lock valve failure Repair or replace fuel filter lock
Vaporizer-regulator failure Repair or replace
vaporizer-regulator
Engine runs unevenly Wrong type of fuel Replace vapor withdrawal tank
or lacks power tank --- vapor withdrawal tank with liquid withdrawal tank
Plugged fuel filter Replace filter
Kinked or restricted fuel line Straighten or replace fuel line
Engine out of tune Tune-up engine
Restricted air filter Clean or replace air filter
element
Vaporizer-regulator maladjusted Adjust vaporizer-regulator