Check Coolant, Additive-Concentration; Check Fan Hub And Drive Pulley; Check Fuel Prefilter Cartridge; Check Hose Clamps On Air Intake Side - Hobart 90CU24 Operation And Maintenance Manual

OM-2084 / Operation and Maintenance Manual
90CU24 / Series 500392 Generator Sets
(3) Check engine mounts
WARNING
a. Engine mount bolts must be torqued to 285 Nm (210 ft-lb.).
(4) Check coolant additive concentration
The cooling system protective liquid (nitrite-, amine- and phosphate free) provides effective
protection against corrosion, cavitation, and freezing. See Cummins Owners and Operations
Manual for ordering and mixture details.
(5) Electrical (12-V DC system)
a. Wiring
Inspect all cables and leads for worn or damaged insulation.
b. Connections
Inspect connectors for security and damaged or corroded condition.
(6) Electrical Generator
a. Protective relays
Check operation of all protective relays to make certain they will function if a fault should
occur in the output circuit. Procedures for testing these relays are contained in the
Adjustment/Test section of this manual.
b. Wiring and connections
Check all cables, leads, and wiring for broken, worn and damaged insulation.
Check all connections for tightness.
c. Clean and inspect generally
g. "D" Checks and Operations (1000 Hours or 1 Year)
(1) Engine
a. Change the water coolant filter (See 2-2; 6, i).
b. Check fan hub and drive pulley.
Inspect for loose bolts or worn features. Tighten bolts and replace parts if necessary
c. Check fuel prefilter cartridge (See 2-2; 5, B).
Prefilter may accumulate foreign substances that may cause damage to fuel system if not
removed. Inspected prefilter thoroughly.
d. Check hose/clamps on air intake side.
Be sure that all clamps are properly secured to prevent leaks.
Chapter 2-1
Page 8
An unstable or loosely mounted engine can create hazardous environment and
may also damage equipment.