Hobart 120CU20, Operation And Maintenance Manual With Illustrated Parts List

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OM-2228 / Operation and Maintenance Manual
120CU20 / Series 500120 / 400 Hz. Generator Set
October 15, 2013 Chapter 2-1
Page 9
g) “D” Checks and Operations (1000 Hours or 1 Year).
(1) Engine.
a Check Fan Hub and Drive Pulley.
Inspect for loose bolts or worn features. Tighten bolts and replace parts if necessary. Refer
to the engine manufacturer’s operations and maintenance manual for assistance and the
most update to date information.
b Check Hose Clamps on Air Intake Side
Be sure that all clamps are properly secured to prevent leaks and all hose are in good
condition.
c Check Belt Condition and Tensioner
Refer to the engine manufacturer’s operations and maintenance manual for assistance and
the most update to date information.
d Check and/or Adjust Valve Clearance
Refer to the engine manufacturer’s operations and maintenance manual for assistance and
the most update to date information.
e Check Water Pump
Inspect the water pump weep hole for indication of a steady leak. If a steady flow of coolant
or oil is observed, replace the water pump with a new or rebuilt unit. Refer to the engine
manufacturer’s operations manual for assistance.
h) “E” Checks and Operations (1500 Hours or 1.5 Year).
(1) Engine.
a Steam Clean Engine.
There are several reasons why the engine exterior should be kept clean. Dirt on the outside
will enter fuel and oil filter cases and rocker housings when covers are removed, unless dirt is
removed first. A clean engine will run cooler and develop fewer hot-spots. Steam cleaning is
one of the most satisfactory methods of cleaning and engine; however, there are some
CAUTIONS to be observed:
WARNING
Exercise care to avoid injury and damage to eyes and skin.