Instruction Manual
Webster
®
Hardness Testers
MODEL B, B-75 & BB-75
WEBSTER
®
HARDNESS TESTERS
Parts list for Model B, B-75 and BB-75
FIG. 9
Webster
®
Hardness Testers are made in three
distinct models. All operate in the same manner
but differ in penetrator design, type of reading
and range of hardness accommodated. The
rst few pages of this manual cover principles
common to all types of Webster
®
Hardness
Testers. Specic instructions on individual
types follow immediately thereafter. This
instruction manual is written to provide a clear
understanding of the use and maintenance of
Webster
®
Hardness Testers. By closely following
the instructions contained herein, the least
amount of lost production time will result due to
returning the tester to the manufacturer for repair
or adjustment.
MODEL
B B-75 BB-75
A Frame Part No. 103 103 103
B Handle 104-A 104-A 104-A
C Pivot Screw 108 108 108
D Anvil 107 107 107
E Housing Key 112 112 112
F Return Spring 111 111 111
G Penetrator 116 117 117
H Load Spring 110-B 110 110-B
J Penetrator Housing 118 118 118
K Adjusting Nut 106 106 106
L Dial Indicator Assy 125-B 125-B 125-B
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