Operation Manual / A170-M.. - A175-M..
9 Disassembly and assembly / 9.10 Fitting the spinner nose cone
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HZTL4033_EN
Rev.K
January 2022
3. Coat the outer contact surface (A) between the spinner nose cone and the compressor
wheel over its entire circumference with Molykote® TP42.
4. Apply Loctite® 542 to the inner thread of the threaded stud.
Fig. 59: Fitting the spinner nose cone (25012)
Product
Size
Tightening torque [Nm]
A170-M
M8
20
A175-M
M10
40
Table 43: Tightening torque (25013)
Always use a new socket screw (25013) and washer (25014) from the customer spare part set
(97070).
5. Fit the spinner nose cone and secure with washer (25014) and socket screw (25013). Ob-
serve tightening torque. The following must be taken into account:
u
The tightening torque must be applied by two people. One person tightens socket
screw (25013), while the second person holds the compressor wheel (25000).
u
Apply tightening torque constantly, avoid jerky movements. Observe tightening torque.
u
Do not repeat the tightening of socket screw (25013).
6. Measure and note down distance Z between spinner nose cone and compressor wheel at
no less than three points around the circumference.
Permissible distance Z:
0.1 – 0.7 mm
Permissible difference of the measurements:
± 0.1 mm
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