Polaris TBM 200 LH User Manual
Page 50
ENGINEERING STANDARD PROCEDURE
IMPELLER INSTALLATION – TECH BULLETIN
1of 1
DOCUMENT NBR. :
PED-017
REVISION:
0
EFFECTIVE
DATE:
09-16-2003
0
NEW
UJB
08-15-02
1
ADDED250LH
UJB
09-26-03
REV ECN CHANGE
DESCRIPTION
BY
APPV’D
DATE
1.0 SCOPE:
Assembly Pre-Load / Bolt Torque requirements for Metric Fasteners of Grades A2-70 (304L)
A4-70 (316L) and 8.8, for Sizes M4 to M20.
2.0 METHOD:
ASSEMBLY TORQUE / ASSEMBLY PRE-LOAD
TIGHTENING TORQUE
ASSEMBLY PRE-LOAD
SIZE CLASS
Nm lb/ft
[lb/in] kN
lbf
M4 2.20
1.622
[19.46]
2.73
612.23
M5 4.20
3.097
[37.16]
4.47
1002.44
M6 7.40
5.45
[65.40]
6.31
1415.08
M8 17.80
13.12
11.60
2601.42
M10 36.00
26.54
18.40
4126.40
M12 62.00
45.72
26.90
6032.62
M16 150.00
110.62
50.90
11414.88
M20
A2-70, A4
-7
0,
8.8
303.00 223.45 82.00
18389.40
ABOVE TORQUE / PRE-LOAD VALUES ARE BASED ON A COEFFICIENT OF FRICTION OF 0.14 (Anti-seize Lubricant)