Hyundai Body Builder 2015 Manual page 149

INTRODUCTION PRELIMINAR STUDIES AND CONSIDERATIONS
MOUNTING AND CONSTRUCTION
Under normal conditions, each longitudinal beam of the subframe must possess a
minimum resistant moment (W
ted gross weight and the operation for which the vehicle is intended.
Body type 1
Body type 2
Body type 3
Table 1-102 SPBTC61_003 Minimum moment of resistance for subframe W
The values shown in the table must be absorbed by each longitudinal beam of the
chassis frame.
Subframe crossbars
In order to adapt the subframe to the movements of the chassis in the best way, the
crossbars between the longitudinal beams of the subframe are also manufactured
with open U-type sections or other similar sections that can properly absorb lateral
and bending forces, while keeping the subframe joined.
The subframe crossbars should be distributed over the chassis frame crossbars, in
order to adapt the two structures each other and so that they can work together
properly.
Fig. 5-103 SPBGC52_002 U-section beam
To reinforce the subframe in certain areas where increased rigidity is required,
beams with closed sections can be used, for example in the rear overhang when a
dumper or crane is installed.
V1.0, February 2015
POWER TAKE-OFF
VEHICLE Minimum moment of resistance for subframe W
TYPE Body type 1
3.5 t
4 t
- - - -
Low strength and rigidity, platform bodies, van bodies, etc.
Medium strength and rigidity, tipper bodies, aerial platform bodies etc.
High strength and rigidity, cranes, semi-trailers, etc.
See chapter 5.2.4 "Subframe design requirements".
Body Builder Manual Part II, Specific Book LCV
MAINTENANCE AND DAMAGE PREVENTION
ELECTRIC AND ELECTRONIC SYSTEMS
), based on the type of vehicle, its maximum permit-
x
Body type 2
20 30
30 35
- -
x
WORK ON BASIC VEHICLE
APPENDIX
(cm³)
x
Body type 3
40
45
- -
149