Zetor Proxima Plus Series, Operator'S Manual, Page: 17 / 254

16
SAFETY INSTRUCTIONS FOR THE USERS
THE LEVEL OF VIBRATIONS ON DRIVER´S SEAT
ZETOR tractors are classified in A category in classes I and II. “A” category includes all tractors with set level of vibrations owing
to similar specifications of construction:
Results of measurement on testing bench are listed in the following table pursuant to directive 78/764/EEC. The value a*
wS
is an
adjusted value of effective acceleration balanced according to vibration movement.
The following table is valid for all type series of Zetor tractors.
Class I & II
Brand of seat Model Springing
a*
wS
(1)
(m/s²)
a*
wS
(2)
(m/s²)
GRAMMER MSG85/721 mechanical 1.18 0.8
GRAMMER MSG95A/721 pneumatic 1.16 1.1
MARS 78/764-73xx mechanical 1.25 1.23
SEARS 3008 mechanical 1.24 1.06
SEARS 3045 pneumatic 1.13 1.03
(1) Values corresponding to driver’s weight of 50 kg.
(2) Values corresponding to driver’s weight of 120 kg.