marposs M1 Star MBG, Инструкция по эксплуатации

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11
REPLACEMENT OF PARTS
AND COMPONENTS
3
DISASSEMBLY OF PLUG GAUGE
To remove the plug gauge use the special wrenches, inserting them in the appropriate
seats (see Fig.1 and Table 1).
1. Apply wrench “A” (*) to handle seat “3” (see Fig. 2).
2. Firmly holding “A” (*), apply special wrench “B” to seat “1” and loosen the plug
gauge by turning it counterclockwise (see Fig. 3); in plug gauges for measuring
range 3 to 7.5 mm, the seat to apply the wrench “B” must be “2”.
3. Manually disassemble the plug gauge, taking care not to drop any part of it.
(*) for an INDICATOR HOLDER, use the 27mm A/F wrench;
for a PENCIL PROBE HOLDER, use the 13mm A/F wrench;
for a MINI INDICATOR HOLDER, use the 15mm A/F wrench.
3.1.1 REPLACEMENT OF PLUG GAUGE
The plug gauge can be replaced if its components are worn out, or if a retooling is
required in order to measure a different diameter.
For retooling procedures it is important to consider that the size of thread “M” for plug
gauge and handle connection, changes in relation to the measuring range of the plug
gauge (see Fig. 1 and Table 1).
1
“M”
“1”
“2”
“M”
RANGE 3-7,5 RANGE 9,5-300
RANGE 7,5-9,5
2
3
“A”
3
“A”
“B”
1
Ø 3-5,5 5,5-7,5
7,5-9,5 9,5-26 26-300
“M”
“1”
“2”
M3,5 x 0,35 M6 x 0,75 M10 x 1
- - 6 A/F 8,5 A/F 23 A/F
3 A/F 4 A/F - 7 A/F 16 A/F
TAB. 1
“1”
“2”
“M”
“1”
“2”
ATTENTION
:
The removal and/or replacement of the plug gauge may result in the loss of the zero-
setting of the bore gauge.