Daily vibration exposure (A(8))
Vibration exposure range
Actions to be taken
A(8)≤0.5 m/s
2
Exposure action value or lower
When approaching the exposure activity value, reasonable
measures should be taken to minimize exposure to vibration.
The relevant information and opportunities for training on vibra-
tion reduction should be provided to the operator.
0.5 m/s
2
<
A(8)≤1.15 m/s
2
Exceeding the exposure action
value, but not exceeding the
exposure limit value
It is required to execute certain measures for reducing exposure
to and risks of vibration to the minimum.
The health of an operator who has been exposed to excessive
vibration should be examined.
1.15 m/s
2
<A(8)
Exceeding the exposure limit
value:
Immediate action is required to reduce the vibration exposure
level to below the exposure limit value.
The vibration level can be predicted based on the information in the following table which is used to cal-
culate the daily level of vibration exposure.
Predict the vibration level in the three vibration directions of axes X, Y, and Z. The mean vibration level
should be used under normal operation conditions. Scenario factors from mean vibration level based on
operation by skilled operator and on smooth terrain are excluded. Scenario factors are included to ob-
tain the mean vibration level based on aggressive operation and severe terrain to assess the expected
vibration level.
All vibration values are indicated in m/s
2
.
(2) Instructions on mitigating vibration
Machines should be correctly adjusted and maintained to ensure smooth operation. The terrain condi-
tions should be observed. The following instructions will help reduce the whole body vibration level:
a
Use machines and attachments of the correct types and sizes.
b
Maintain the machines pursuant to the manufacturer’s recommendations.
•
Brake and steering systems
•
Controls, hydraulic system and linkage
•
Tire pressure
c
Maintain and provide good terrain conditions.
•
Remove any large rocks or obstacles.
•
Fill gutters or holes.
•
Keep the vibration level minimal by adjusting the speed and driving path
d
Use a driver’s seat that satisfies ISO 7096.
•
Adjust the driver’s seat and suspension for the weight and the size of the operator.
•
Inspect the suspension and adjusting devices of the driver’s seat.
e
Perform the following maneuvers without using excessive force :
•
Steering
•
Braking
•
Accelerating
•
Gear shifting
f
Move the attachments smoothly.
g
Adjust the speed and path of machine to keep the vibration level minimal.
•
Operate the machine so as to avoid obstacles and rough terrain.
•
Decelerate the machine when driving on rough terrain.
h
Keep the level of vibration minimal when working for a long time or driving for a long distance.
•
Use a machine mounted with suspension system.
•
Use the machine’s drive control system (optional).
•
If the machine is not fitted with a drive control system, reduce the speed.
•
Transport the machine when moving between worksites; do not drive the machine to get to
another worksite.
1-11
Summary of Contents for HL930A
Page 1: ...WHEEL LOADER OPERATION MAINTENANCE MANUAL HL930A HL930A XT Serial No ...
Page 2: ......
Page 4: ......
Page 25: ...1 CALIFORNIA PROPOSITION 65 SAFETY HINTS 1 1 ...
Page 133: ...13 REAR CAMERA option 1 The rear camera is available as a option Refer to page 3 39 3 75 ...
Page 147: ...15 CAMERA MONITOR OPTION 3 89 ...
Page 149: ... 2 Interlocked with other devices 3 91 ...
Page 150: ... 3 Operation scenario Single camera mode 3 92 ...
Page 151: ... 4 Operation scenario AAVM mode 3 93 ...
Page 152: ... 5 AAVM view mode type 3 94 ...
Page 153: ... 6 Function menu tree Single cam mode 3 95 ...
Page 154: ... 7 Function menu tree AAVM mode 3 96 ...
Page 155: ... 8 Parking guide line adjust 3 97 ...
Page 156: ... 9 How to set function menu 3 98 ...
Page 157: ... 10 Composition of menu screen 3 99 ...
Page 158: ... 11 Value adjustment 3 100 ...
Page 159: ... 12 When radar mounted monitor display 3 101 ...
Page 160: ......
Page 260: ...9 2 ...
Page 261: ......
Page 262: ...EN English E1 September 2020 PART NO 91WA 32040 ...