Kenworth T410, Driver'S Handbook Manual

Page: 80 / 418

Page 54 CAT: 8612 November 2019
OPERATING INSTRUCTIONS
32 & 33. Turn Signals - Left or Right
Blinks when the left or right turn signal or the hazard light
function is operating.
OPTIONAL GAUGES
Introduction
Listed here are gauges that may or may not be on your dashboard or the
center instrument cluster. For vehicles with a telematic navigation screen,
optional gauges will be part of the screen functions. refer to the navigation
system supplement for further details about its functions and how it works.
Fuel Filter Restriction Pressure
This gauge tells you the condition of the fuel filter by indicating
the restriction from the fuel filter to the fuel pump. Check the
engine manual for proper restriction. Replace the filter with
an approved filter only. Do not substitute the wrong micron
element.
The maximum allowable restriction could vary according to the type or
make of engine. Consult the engine manufacturer’s manual or engine
dealer for fuel restriction specifications.
Air Filter Restriction Indicator or Gauge
This gauge indicates the condition of the engine air cleaner
and is measured by inches of water (H
2
O). A clean filter should
register 7in. H
2
O (may vary with system design) and a filter
whose life is over will register approximately 25in. H
2
O.
Continued operation with the Air Filter Restriction Gauge reading 25in.
H
2
O may cause damage to the engine. Inspect the filter and replace if
necessary. Holes in the paper element render an air cleaner useless and
may cause the Air Filter Restriction Gauge to give a false reading, even if
the element is clogged. Replace the element if it is damaged.
Engine, Oil Pressure
It is important to maintain oil pressure within acceptable limits.
If oil pressure drops below the minimum psi a red warning light
in the gauge will turn on, the Stop Engine light will come on and
an audible alarm will sound.