Hyundai Body Builder 2015 Manual page 203

IINTRODUCTION PRELIMINAR STUDIES AND CONSIDERATIONS
MOUNTING AND CONSTRUCTION
The type of PTO and the transmission ratio are therefore dependent on the power
and speed required by the equipment to be operated.
In this way, the equipment's torque and rotational speed values can be controlled
by the PTO transmission ratio (Z), so it is possible to ensure that the permissible
maximum values are not exceeded.
Engine speed
The engine speed is a determining factor for choosing the most suitable PTO ac-
cording to the operation that must be developed.
On the other hand, when the additional consumer installed in the body requires large
torque, the Body Builder should check whether the engine is able to deliver the re-
quired power at the specified speed. It should also take the performance loss be-
tween the engine and the equipments or additional consumers into account.
The transmission ratio of the PTO must be chosen so that the power absorption oc-
curs in the elastic field of engine operation. Low rpm (minimum value recommended
780 rpm) should be avoided, to prevent irregularities and vibration in vehicle oper-
ation. The power absorption must be within the maximum engine torque.
Generally, the required power output is not constant. Depending on the body and its
purpose of application, the engine power must be minimum, constant or maximum.
Many times it is necessary to meet various power requirements at the same time.
To this purpose, the HMC vehicles have a control device,by means of which the en-
gine speed can be manipulated, depending on requirements. Revolutions can also be
controlled by means of the accelerator, but pay attention must be paid not to ex-
ceed the maximum speed supported by body equipment.
There are a number of different possibilities for controlling the PTO in vehicles sup-
plied by HMC:
PTO
configuration
0
Vehicle with PTO control
1
Vehicle with PTO control
2
3
Table 1-152 SPBTC61_001 Control possibilities of the PTO
V1.0, February 2015
POWER TAKE-OFF
POSSIBILITIES OF CONTROL OF THE PTO
Type of vehicle
Vehicle without PTO
only inside cabin
only outside cabin
Vehicle which uses PTO
both inside and outside
cabin
Body Builder Manual Part II, Specific Book LCV
MAINTENANCE AND DAMAGE PREVENTION
ELECTRIC AND ELECTRONIC SYSTEMS
Denomination
- -
PTO "In-Cab" mode
PTO "Out-Cab" mode
PTO "Both" modes
WORK ON BASIC VEHICLE
APPENDIX
Description
PTO disabled under all
operating conditions
In-cab inc/dec switch and
in-cab accelerator pedal
are enable to use
Out-cab inc/dec switch
and out-cab accelerator
pedal are enable to use.
Distinguish "In-Cab" or
"Out-Cab" by Remote PTO
enable switch
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