Replace bottom radial shaft sealing ring on control head - AR46.20-P-0003A

MODEL 210.### #AAUP to 999999, 210.### #B up to 502650, 210.### #X up to 097150 

	Remove
	Risk of death.  Death may result if vehicle slips or topples from the lifting platform.	Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
1	Remove rack-and-pinion steering		AR46.20-P-0600A
2	Mount the rack-and-pinion steering in the fixture for locating the steering housing	Warning!  For the following work attention should be paid to extreme cleanliness in the workplace while carrying out the repair! Only the specified tool may be used! Before starting the repair, remove loose contamination on the steering gear without using cleaning agent, otherwise the steering may become damaged.
		Steering gear housing support	Fig 5
3	Remove clamps on the inside of both bellows
4	Compress clamps on the outside	Move bellows towards the tie rod end.
5	Detach inner tie rod with axial joint	Do not use force (hammer blows, severe leverage) as otherwise the tie rod with axial joint will be damaged. Detach the left and right side. Secure the rack to prevent it from twisting, counterhold with open wrench.
		Open-end wrench	Figure
	Dismantling
6	Unscrew screws (1)
7	Unscrew screw (2)
8	Remove the pipelines (3)
9	Loosen adjusting screw (4) approx. 2 revolutions	Mark the position before loosening the adjusting screw (4).
10	Mount the sleeve on the control head side of the steering rack	The assembled sleeve does not always correspond with center position of the steering rack.
		Sleeve	Fig 7
11	Remove covering cap (5)
12	Unscrew bolts (6)
13	Screw in studs	Studs must be screwed in for removing the control head (7), otherwise radial shaft sealing ring and teeth faces can be damaged. Studs can be shop-made (M8x50).
14	Rotate input shaft counterclockwise	Until the control head (7) releases from the steer jacket (9).
		Socket wrench	Fig 12
15	Remove control head (7)
16	Remove spring washer (10)
17	Unscrew studs
18	Remove oil which has run in from the control head (7) from the rack-and-pinion steering	Turn rack-and-pinion steering with opening facing downwards and allow oil to drain out. In order to rule out contamination, do not use any cleaning agent, shop towels or cleaning cloths.
19	Remove rotary shaft seal (8)	Do not position puller on threads or too far inward to prevent damage to threads and/or O-ring seat.
		Installation:  Pay attention to correct installation position of radial shaft sealing ring (8).
		Puller, id. 28-37 mm	Fig 8
		Counter support	Fig 9
	Assembling
20	Grease outer surface of radial shaft sealing ring (8)	Apply grease with fingers, do not use other aid
21	Drive in radial shaft sealing ring (8)	Pay attention to correct seating of the drift and guide sleeve, otherwise the radial shaft sealing ring (8) will be damaged.
		Pay attention to the correct installation position of the radial shaft sealing ring (8).
		Drift	Fig 10
		Guide sleeve	Fig 11
22	Grease inner lip of radial shaft sealing ring (8)	Apply grease with fingers. Do not use any other aids.
23	Insert spring washer (10)	Insert disk spring (10) with the curvature towards the steer jacket (9).
24	Screw in studs	The studs must be screwed in to install the control head (7) in order to avoid damaging the radial shaft sealing ring (8) and tooth flanks.
25	Mount sleeve on the steering rack on the side facing away from the control head	The installed sleeve does not always immediately correspond the rack center position.
26	Push the control head (7) in as far as possible	Replace O-ring.
27	Rotate input shaft clockwise	Turn carefully! Teeth faces can be damaged. Rotate clockwise until the input shaft bearing is located in the guide in the steering housing (9).
		Socket wrench	Fig 12
28	Unscrew studs
29	Screw in screws (6)	Screw in several steps in order to prevent tilting over.
			*BA46.20-P-1009-01A
30	Move steering rack into the center position	Detach sleeve from the steering rack. Find the center position using a depth gauge. Bring both sides of the end of the steering rack to the same dimension relative to the stop ring (11) in the steering housing (9).
31	Grease gap between the input shaft and control head (7) (arrow)	Apply grease with fingers. Do not use any other aids.
32	Push on cap (5)	The marking on the cap (5) must match the marking on the control head (7) (arrow).
33	Install pipelines (3)	Replace all O-rings.
			*BA46.20-P-1010-01A
			*BA46.20-P-1011-01A
34	Set play between thrust piece and steering rack		AR46.20-P-0601A
35	Check rack for easy motion by turning manually.
	Install
36	Mount inner tie rod with axial joint	Do not use force (hammer blows, severe leverage) as otherwise the tie rod with axial joint will be damaged.
		Mount the left and right side. Secure the rack to prevent it from twisting, counterhold with open wrench.
		Open-end wrench	Figure
			*BA46.40-P-1003-01A
37	Compress clamps on the outside	Move bellows towards steer jacket (9).
38	Install clamps on the inside of both bellows	Replace clamps.
39	Detach rack-and-pinion steering from the fixture for locating the steering housing
		Steering gear housing support	Fig 5
	Risk of death.  Death may result if vehicle slips or topples from the lifting platform.	Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
40	Install rack-and-pinion steering		AR46.20-P-0600A
41	Measure vehicle electronically, adjust toe-in of front and rear axle		AR40.20-P-0200A
	Risk of accident  as vehicle may start off by itself with the engine running. Risk of injury  as working around the engine during start-up or while running may result in contusions and burns	Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
42	Check rack-and-pinion steering for proper function.	Rotate steering wheel from lock to lock several times. Check oil level in steering. Check leaktightness of steering. Check function of steering during low-speed and highspeed cornering.

Number	Designation		Model 210
BA46.20-P-1009-01A	Timing case to rack-and-pinion steering	NM	21
BA46.20-P-1010-01A	Pipeline to timing case	NM	60
BA46.20-P-1011-01A	Pipeline to rack-and-pinion steering	NM	20

Number	Designation		Model 210
BA46.40-P-1003-01A	Inner track rod with axial joint to rack-and-pinion joint	NM	110