Remove/install rear axle center assembly - AR35.31-P-0520GG

Rear axle center assembly dia. 168 in MODEL 170.435

Rear axle shafts plugged in

Rear axle center assembly dia. 185 in MODEL 170.444 /445 /447 /449

Rear axle shafts plugged in

Rear axle center assembly dia. 198 in MODEL 170.465 /466

Rear axle shaft plugged in

Fig 1: Identifying Rear Axle Center Assembly Remove/Install Components

	Remove/Install
	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.	AS00.00-Z-0010-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Features, installation survey for rear axle center assemblies	Rear axle center assembly with crown wheel dia. 168 mm	GF35.31-P-1000-01B
	Features, installation survey for rear axle center assemblies	Rear axle center assembly with ring gear dia. 185 mm	GF35.31-P-1000-01C
	Features, installation survey for rear axle center assemblies	Rear axle center assembly with ring gear dia. 198 mm	GF35.31-P-1000-01A
1	Remove the right rear wheel
	Remove/install wheels, rotate if necessary		AP40.10-P-4050Z
2	Remove right rear axle shaft (37)	Installation: Replace circlip (37o) on inner splined profile of rear axle shaft (37).	AR35.30-P-0620GG
3	Undo bolt (64b) of rear center assembly mount		AR35.10-P-0050-05GG
			*BA35.10-P-1004-01A
4	Remove cover (1) of fuse pump assembly
5	Detach rear propeller shaft (106) from rear axle center assembly (50)	The flexible coupling remains on the rear propeller shaft (106). If the fitted sleeves are jammed: ↓ Loosen the fitted sleeves of the flexible couplings using a drift	AR41.10-P-0050-09DA
	Drift for loosening fitted sleeves in flexible couplings.		WF58.50-P-4110-01A
			*BA41.10-P-1002-01A
6	Undo bolts of propeller shaft intermediate bearing (106a) and remove rear propeller shaft (106) from rear axle center assembly (50)	Installation: Do not tighten bolts of propeller shaft intermediate bearing (106a) until the flexible coupling on the rear axle center assembly (50) has been fastened into place.
			*BA41.40-P-1001-01A
7	Support rear axle center assembly (50) with transmission jack and transmission platform and lash down securely	Transmission jack	*WE58.40-Z-1030-11A
		Transmission plate	*WE58.40-Z-1018-11A
8	Undo bolt (64a) of rear center assembly mount		*BA35.10-P-1004-01A
9	Unscrew bolt (64c) of front center assembly mount		*BA35.10-P-1003-01A
10	Pry rear axle center assembly (50) off the left rear axle shaft (37)	Installation: Replace circlip (37o) on inner splined profile of rear axle shaft (37).
11	Lower and remove rear axle center assembly (50)
12	Replace breather of rear axle center assembly (50)		*BA35.31-P-1005-02A
13	Install in the reverse order
14	Check oil level in rear axle center assembly (50) and correct if necessary	Mixing old Universal hypoid gear oil and the FE-hypoid gear oil should be avoided for better fuel economy.	AR35.31-P-0520-03A
		Filling capacity of rear axle center assembly	*BF35.31-P-1001-01F
		Cleaning spray, Loctite 7063 (150ml)	*BR00.45-Z-1046-04A
		Sealant, Omnifit 100H (50 g)	*BR00.45-Z-1061-01A
		Oil filler plug, rear axle center assembly	*BA35.31-P-1002-02A
	Oil filler screw and oil drain screw changed on rear axle center assembly	as of 19.01.04	BT35.31-P-0015-01A

Rear axle carrier

Number	Designation		Model 170
BA35.10-P-1003-01A	Self-locking nut, rear axle center assembly at front to rear axle carrier	Nm	50
BA35.10-P-1004-01A	Self-safety bolt, rear axle center assembly at rear to rear axle carrier	Nm	110

Driveshaft

Number	Designation			Model 170
BA41.10-P-1002-01A	Self-locking nut, flexible coupling to rear propeller shaft or rear axle center assembly.	M10	Nm	40
BA41.10-P-1002-01A		M12	Nm	60

Driveshaft center bearing

Number	Designation			Model 170
BA41.40-P-1001-01A	Bolt driveshaft center bearing to frame	Bolt with washer	Nm	25
		Bolt with collar and selfcentering tip	Nm	30
		Bolt with collar and without self-centering tip	Nm	-

Rear axle center assembly housing

Number	Designation		Model 170
BA35.31-P-1002-02A	Oil filler plug, rear axle center assembly	Nm	50
BA35.31-P-1005-02A	Breather, rear axle center assembly	Nm	25

Rear final-drive unit

Number	Designation			Model 170.435	Models 170.444/ 444/445/ 449	Model 170.465/466
BF35.31-P-1001-01F	Filling capacity	Rear axle center assembly	Liters	0.7	1,1	1,1
BF35.31-P-1001-01F	Filling capacity	Specifications for Operating Fluids	Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-07A	BB00.40-P-0235-07A

Workshop equipment

WE58.40-Z-1018-11A	Transmission platform
WE58.40-Z-1030-11A	Transmission jack

Repair materials

Number	Designation	Order number
BR00.45-Z-1061-01A	Sealant, Omnifit 100H (50 g)	-
BR00.45-Z-1046-04A	Cleaning spray, Loctite 7063 (150ml)	A 001 986 71 71 10