Suggests how much time allowances with respect to tasks carried out. An effective tool to be considered while performing Motion Time Measurements.

1. Work System Design
Kiran Hanjar S
1MS12MIA03
II sem
MSRIT

2. *Allowances refers to extra time allowed, beyond
completion of the task itself
*Some allowances are necessary for health and long
term efficiency (like rest breaks)
*Others are pragmatically necessary, (like time for
picking up dropped tools or consulting with
supervisor)
*Personal , Fatigue and Delay allowances

3. Personal Allowances:
* Given for things such as going to restroom, drinking water,
smoking and so on
* Do not vary with the task
* Values of 5%(24 minutes in a 480 minute day)
Fatigue allowances:
Compensate the person for the time lost due to fatigue
In contrast to personal allowances, which are given to everyone,
fatigue allowances are given only for cause
Semiautomatic machines (Personal Allowances, delay Allowances
and recover from fatigue)

4. Fatigue factors are grouped into three categories:
Physical
* Carrying , lifting loads and force applied
* Static load (body posture)
Mental
Environmental
* Dust , dirt and fumes

5. * Push :
weight (kg)
1-2
3-6
7-9
10-12
13-15
16-17
18-19
20
% allowances
10
11
12
13
14
15
16
17

6. * Carrying load:
weight (kg)
1-2
3-4
5-6
7-8
9-10
11
12-13
14-15
16
17
18
19
20
% allowances
10
11
12
13
14
15
16
17
18
19
20
21
22

7. *
Lifting:
*
Weight (kg)
1
2
3-4
5-6
7
8
9
10
11
12
13
14
15-16
17
18
19
20
% allowances
10
11
12
13
14
15
16
17
18
19
21
22
24
26
27
28
30

8. Sitting awkwardly
Activity
Standing or walking freely
10% allowances
Ascending or Descending
stairs
12%
allowances
Coal mining with pickaxes
shovelling to container

9. Noise allowances:
Working in a quiet office, light assembly
works
10% allowances
Wood working machine shop
12% allowances
Light machine shop, office or assembly
shop were noise is distraction

10. Operating steam hammer in forge
18% allowances
Road drilling
Riveting in shipyard

11. Vibration allowances
Shovelling light materials
12% allowances
Power drill (2 hands)
Power sewing machine
Drill operated by one hand
14% allowances

12. Normal factory/office work
Inspection of easily visible faults
10% allowances
Intermittent inspection for
detailed faults

13. Continuous visual inspection (cloth)
12% allowances
Engraving using an eyeglass

14. Dust
Office normal light assembly
Grinding or buffing
10% allowances
12% allowances
Finishing weld
Emptying ashes
14% allowances

15. Unloading cement
Demolishing building
15% allowances
Running coke from hoppers 11

16. Dirt:
Stripping IC engine
Working under old vehicle
12% allowances
16% allowances
Coal mines, chimney sweep with brushes

17. Fumes :
12% allowances
Emulsion paint, gas cutting
Lathe turning with coolants
15% allowances
Moulder providing metal & filling mould