Operation Manual / A170-M.. - A175-M..
9 Disassembly and assembly / 9.10 Fitting the spinner nose cone
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HZTL4033_EN
Rev.H
July 2021
2. Clean and degrease the inner thread of the threaded stud and socket screw (25013).
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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