Definition Of Term - Hino Motors HINO 155 series Workshop Manual

GENERAL INTRODUCTION/SAFETY INSTRUCTIONS AND READINESS TO WORK

DEFINITION OF TERM

DEFINITION OF TERM
Terms used in this document are defined as follows.
DIRECTION
1. CHASSIS RELATED
(1) Longitudinal direction
a. The forward direction and the reverse direction of a vehicle are respectively defined as front and rear in the
installed position in a vehicle.
(2) Rotational direction
a. The clockwise direction and the counterclockwise direction viewed from the rear side of a vehicle are defined
as right-handed and left-handed respectively.
(3) Vertical direction
a. The upward direction and the downward direction in the installed position in a vehicle are defined as an upper
side and a lower side respectively.
(4) Lateral direction
a. The leftward direction and the rightward direction viewed from the back of a vehicle are respectively defined as
a left side and a right side in the installed position in a vehicle.
2. INDIVIDUAL DEVICES
(1) Longitudinal direction
a. The input side and the output side of motive power are defined as a front side and a rear side respectively.
(2) Rotational direction
a. The clockwise direction and the counterclockwise direction viewed from the back side are defined as right-
handed and left-handed respectively.
(3) Vertical direction
a. The upward direction and the downward direction of a device in its installed position in a vehicle (chassis) are
defined as an upper side and a lower side respectively.
(4) Lateral direction
a. The leftward direction and the rightward direction as viewed from the back side are defined as a left side and a
right side respectively.
STANDARD VALUE
Represents a basic dimension (excluding a tolerance), and a clearance arising from tolerances when two parts are assem-
bled.
REPAIR LIMIT
Represents a numerical value indicating need of correction. A symbol "+" or "-" indicated next to a repair limit represents
an increase or a decrease from a standard value.
SERVICE LIMIT
Represents a numerical value indicating need of replacement. A symbol "+" or "-" indicated next to a repair limit represents
an increase or a decrease from a standard value.
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