Check ring gear/drive pinion contact pattern

Type ar · emne 35.30 · version 0112 · 2018-05-12

Gælder for: Rear axle 740.8 in model 934, 958, 963, 964 Rear axle 742.5 in model 967, 970, 972, 975, 976 Rear axle 746.2 in model 930, 934, 940, 944, 950, 954 Rear axle 746.3 in model 930, 934, 956, 963, 964 Rear axle 748.2 in model 930, 932, 933, 934, 940, 942, 943, 944, 949, 950, 952, 953, 954, 956, 957, 959, 963, 964 Rear axle 748.7 in model 374, 954 Rear axle 770 in model 967, 970, 972, 975, 976 Rear axle 771 in model 942, 943, 963, 964 Rear axle 771 in model 967, 970, 972, 974, 975, 976

Ikke tilgængelig på “da”; vises på Engelsk.

AR35.30-W-0475-02B	Check ring gear/drive pinion contact pattern
	Notes on evaluating the contact pattern of the drive pinion/crown gear		AH35.30-N-0001-03A

Rear axle	740.8 in model 934, 958, 963, 964
Rear axle	742.5 in model 967, 970, 972, 975, 976
Rear axle	746.2 in model 930, 934, 940, 944, 950, 954
Rear axle	746.3 in model 930, 934, 956, 963, 964
Rear axle	748.2 in model 930, 932, 933, 934, 940, 942, 943, 944, 949, 950, 952, 953, 954, 956, 957, 959, 963, 964
Rear axle	748.7 in model 374, 954
Rear axle	770 in model 967, 970, 972, 975, 976
Rear axle	771 in model 942, 943, 963, 964
Rear axle	771 in model 967, 970, 972, 974, 975, 976

Repair materials

Number	Designation	Order number
BR00.45-Z-1002-07A	Engineer's blue, 80 ml tube, BLUE, Diamant	Qualitätswerkzeuge Hoffmann GmbH Haberlandstrasse 55 81241 Munich Germany Tel. +49 89 8391-0 Fax +49 89 8391-89 www.hoffmann-group.com Order no. 085388

 The manufacturing tolerances of the drive pinion and crown gear are designed so that proper operation is guaranteed when the installed dimension and gear backlash are set accurately.

Checking the contact pattern of the gear set is an additional inspection.

Check

1	Coat two teeth (offset by 180°) of crown gear with marking paste.

2	Turn drive pinion and, whilst doing so, brake crown gear with a piece of hard wood (arrow).

 Through the use of braking, an axle drive under load is shown during testing.

3	Assess determined contact pattern.

W33.30-0019-01

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