Disassemble, assemble front wheel hub - AR33.20-P-0320V

MODELS 171.4 

Fig 1: Assembling Tapered Roller Bearing Outer Race Of Outer Tapered Roller Bearing

Courtesy of MERCEDES-BENZ USA

Fig 2: Assembling Tapered Roller Bearing Outer Race Of Inner Tapered Roller Bearing

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Radial Seal Ring

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

8.6.05

Filling capacity, hub (total filling capacity)

Model 171

*BF33.20-P-1001-01A

	Disassemble
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the lifting platform and position the four support plates below the hoist support points specified by the vehicle manufacturer.	-
1	Raise vehicle with lifting platform		AR00.60-P-1000V
2	Remove front wheels
	Remove/install wheels, rotate if necessary		AP40.10-P-4050V
3	Remove front wheel hub		AR33.20-P-0310V
4	Hammer out inner tapered roller bearing (9l) and radial sealing ring (9a) using drift (05a)	The RPM sensor exciter ring is integrated in the radial sealing ring (9a). Therefore this should always be replaced.
		Drift punch	Fig 5
5	Press out tapered roller bearing outer race (9c) of outer tapered roller bearing using workshop press and drift (05a)
		Drift punch	Fig 5
6	Press out tapered roller bearing outer race (9b) of inner tapered roller bearing using insertion tool, part 10 (06d) and a suitable drift
		Insertion tool	Fig 4
7	Clean tapered roller bearing and front wheel hub
	Check
8	Inspect tapered roller bearing and bearing races		AR33.20-P-0310-02V
9	Check front wheel hub	Check tapped holes for damage
	Assemble
10	Pull tapered roller bearing outer race (9b) of inner tapered roller bearing and tapered roller bearing outer race (9c) of outer tapered roller bearing into the front wheel hub using insertion tool, part 02 (06b) and insertion tool, part 03 (06c)
		Insertion tool	Fig 4
11	Insert inner tapered roller bearing (9l) into front wheel hub	Grease inner tapered roller bearing (9l) before inserting.
		High temperature antifriction bearing grease (NLGI grade 2)	BB00.40-P-0265-01A
12	Pull in radial sealing ring (9a)	The RPM sensor exciter ring is integrated in the radial sealing ring (9a) and must not be processes using metal tools. Therefore when pulling in the side lined with rubber of the insertion tool, part 01 (06a) should be used. Pull in radial sealing ring (9a) as far as the stop in the front wheel hub using insertion tool, part 01 (06a) and insertion tool, part 02 (06b). Coat the contact surface of the radial sealing ring (9a), as well as the space between the lip and dust lip with grease and replenish.
		High temperature antifriction bearing grease (NLGI grade 2)	-
		Insertion tool	Fig 4
13	Fill wheel hub with grease		*BF33.20-P-1001-01A

WHEEL HUB, HUB CAP

Number	Designation			Model 171
BF33.20-P-1001-01A	Filling capacity	Hub cover	g	15
		Hub (total capacity)	g	70
		Specifications for Operating Fluids	Sheet	BB00.40-P-0265-01A

Fig 4: Identifying Insertion Tool (203 589 02 43 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Extraction Drift (202 589 00 15 00)

Courtesy of MERCEDES-BENZ USA