6 Scheduled Maintenance
61
Cab Up
Check Operation of Cab Tilt Pump
— Pull the safety prop
release cable and activate the cab tilt switch. The cab should
rise.
Check Cab Safety Prop
— Inspect the cab safety prop that
encloses the cab lift cylinder. It should drop freely into place to
support the cab when it is in the raised position. The lower cab
cylinder pin and bracket should be inspected for signs of
fatigue.
Check Cab Suspension and Latch
— Inspect the linkages of
the suspension system for excessive wear and proper
alignment. Inspect the air bag for leaks or signs of abrasion.
Inspect the lock jaw for excessive wear and proper operation.
Check Engine Intake Ducting for Leaks
— Inspect all engine
clean air tubes and hoses for leaks. All clamps should be
checked for proper torque and all joints should be properly
aligned.
Check Radiator for Leaks
— Inspect the radiator core and
tanks for signs of coolant leaks.
Check Radiator Mounts
— Inspect the radiator mounts for
wear or excessive looseness.
Check Coolant Level and Concentration
— Check the
cooling system level. Coolant should be visible in the radiator
sight glass. It is not necessary for the coolant to be at the top
of the sight glass. Test and maintain the proper anti-freeze
level of concentration as outlined in the appropriate Engine
Operator's Manual.
Check and Adjust Coolant Additive
(if applicable)
— Using
the appropriate test method for the supplemental coolant
additive being used (i.e., DCA or Nalcool), maintain the
recommended level of concentration as outlined in the
applicable Engine Operator's Manual.
Change Engine Coolant
— Flush the cooling system and
replace with clean coolant of the appropriate concentration.
Check Coolant Hoses and Clamps
— Inspect all hoses for
abrasion, cracks, holes and routing. Check all clamps for
proper torque.
Check Fan Clutch for Operation
(if applicable)
— Run the
engine to confirm that the fan clutch engages at the proper
temperature.
Check Engine Cooling Fan for Cracks
— Shut the engine off
if running. Inspect the fan blades for signs of cracking.
