Disassemble/assemble drive pinion

AR33.30-G-0460C

18.8.11

FRONT AXLE 737.365 in MODEL 437.420 /425

G33.30-3148-06

1 Retaining ring

2 Serrated washer

3 Slotted nut

4 Drive pinion

5 Pinion flange

6 Large tapered roller bearing

G33.30-3126-01

7 Roll pin (old)

8 Roll pin (new)

9 Small tapered roller bearing

G33.30-3163-01

	Disassemble
1	Disassemble front axle		AR33.10-G-0060C
2	Remove circlip (1) and remove toothed lock washer (2)
3	Clamp drive pinion (4) in mount and turn down slotted nut (3)		*425589003100
			*427589000700
4	Press drive pinion (4) out of pinion flange (5) and remove roll pin (7)
5	Remove small tapered roller bearing (9) from pinion flange (5)
6	Pull large tapered roller bearing (6) off drive pinion (4)		*000589453300
7	Remove both tapered roller bearing outer races from pinion flange (5)
8	Clean all parts, check for wear and damage	 Installation: Replace worn or damaged parts. The drive pinion (4) may only be replaced together with the differential crown wheel. Ensure manufacturing numbers are the same.
	Assembly
9	Install both tapered roller bearing outer races in pinion flange (5)	 Drive in carefully using a copper drift.
10	Press large tapered roller bearing (6) onto drive pinion (4)	 Replace large tapered roller bearing (6). The new tapered roller bearing (6) is moistened with a special corrosion - adjusting oil. This special lubricating oil must not be wiped off nor brought into contact with other lubricants.
			*425589003500
11	Push roll pin (8) onto drive pinion (4)	 Replace roll pin (7). Since the old tension sleeve (7) has already been deformed when it was first assembled, a new tension sleeve (8) must be used.
12	Install drive pinion (4) in pinion flange (5)
13	Press small tapered roller bearing (9) onto drive pinion (4)	 Replace small tapered roller bearing (9). The new tapered roller bearing (9) is moistened with a special corrosion - adjusting oil. This special lubricating oil must not be wiped off nor brought into contact with other lubricants.
		 Coat the new tapered roller bearing (9) at the front face (crosshatch pattern) using long-life grease. The long-life grease must not come into contact with the roller surfaces. An accurate bearing adjustment can only be made under these conditions. The service life of the axle drive is decisively influenced by this.
			*425589003500
			*BR00.45-Z-1001-06A
14	Screw on slotted nut (3) by hand
15	Check friction value of drive pinion (4), adjust	 If the specified friction value is exceeded, operation steps 3 to 14 must be repeated.	AR33.30-G-0458-06C
			*BE33.30-N-1002-02B
			*405589012100
			*425589003100
			*427589000700
			*745589012100
16	Secure slotted nut (3) using toothed lock washer (2) and circlip (1)
17	Assemble front axle		AR33.10-G-0060C