4. RULES FOR CONDUCTING SERVICE WORK
1. In order to avoid deficient reassembly, know normal status of installation before removing or
disassembling any part. Level check or replacement of vibrator oil should be carried out on level
ground.
2. Each time disassembly is made involving oil seal, gasket, packing, o-ring, lock washer or the like, be
sure to replace them with new ones.
3. Mating surfaces of vibrator case and compaction plate should be sealed with liquid gasket (Clean
and de-grease the mating surfaces thoroughly).
4. For tightening bolt and nut, use the specified standard torque and bonding agent (Loctite or the
like). For such bolt and nut that are not specified, see Table of Tightening Torque. (Before
coating
with Loctite, clean the screw
s thoroughly
.)
Note) All the screw
s
in use with this machine are right handed.
Table of Tightening Torque (kgf-cm)
Table 2
Screw diameter
Material
6mm 8mm 10mm 12mm
14mm
16mm
18mm
20mm
4T(SS41)
70 150 300 500
750
1,100
1,400
2,000
6-8T(S45C)
100
250
500
800 1,300 2,000 2,700 3,800
11T(SCM3)
150
400
800
1,200 2,000 2,900 4,200 5,600
In case counter
part is made from
aluminum
100 300
〜
350
650
〜
700
※
For indication in SI Unit (International Unit System), use the conversion of 1kgf-cm=9.80665N-cm
5. Disassembly work should be conducted where it is free from dust.
6. Where bonding agent such as Loctite has been in use and screw is hard to loosen, heat it with torch
lamp or the like. Such heated bolt must be replaced with new one, which is of high-tension type as
specified.
7. Use proper tool in proper manner.
Hydraulic hose tightening torque: Screw size 1/4 380kgf‑cm
3
Summary of Contents for Mikasa MVH120
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