Kenworth T410, Driver'S Handbook Manual

Page: 95 / 418

CAT: 8612 November 2019 Page 69
OPERATING INSTRUCTIONS
35. Lights - Marker/Clearance/Trailer
Turn switch on to control Trailer Marker/Clearance lights
separately from the vehicle marker/clearance lights.
36. Lights - Spot
Turn switch on for Spot Light.
37. Power Take-off (PTO)
Turn switch on to engage PTO. Your vehicle may be equipped
with a dash mounted switch that controls PTO engagement/
disengagement.
When the operator activates the switch for the PTO, the status
indicator lamp (located on the switch) will immediately illuminate
even though PTO engagement may not have occurred.
If the PTO is engaged and the operator turns the switch OFF,
the PTO status indicator lamp (located on the switch) will go out
immediately even though PTO disengagement may not have
occurred.
Actual PTO engagement/disengagement may be delayed momentarily
since it is controlled by the air system and mechanical movement.
Increasing engine RPM before the PTO is actually engaged could prevent
the PTO from engaging and/or cause PTO damage.
38. Suspension - Dump
Turn switch on to deflate Suspension Air Bags. This switch does
not require ignition power to maintain the desired switch setting.
Do not operate the Air Suspension Deflate Switch (Dump Valve) while
driving. Sudden deflation while your vehicle is moving can affect
handling and control and could lead to an accident. Use this switch
only when your vehicle is not moving.
Operating a vehicle with air suspension bags either over-inflated or under
inflated may cause damage to driveline components. If a vehicle must be
operated under such conditions, do not exceed 8km/h.
PTO PTO