Adjust wheel bearing play - AR33.20-P-0300A

Fig 1: Adjusting Wheel Bearing Play

	Removing
1	Remove front wheel
	Remove/install wheels
2	Turn-in wheel bolt (48a) opposite from brake rotor attachment bolt	To immobilize brake rotor.
3	Press brake pads back into brake caliper
4	Remove hub cap (9e) using press out/in tool
	Checking
5	Loosen hexagon socket bolt (9i) and tighten clamp nut (9d) lightly while turning the front wheel hub	To apply the wheel bearing. Observe technical modification on Model 140: ↓
	Front wheel bearing	Contact spring and washer not used anymore
6	Mount dial indicator (022) with dial indicator holder (015) on the brake disk
7	Adjust wheel bearing play by turning (arrow) the clamping nut (9d) in stages while pushing and pulling the brake disk firmly back and forth.	Do not twist or tilt the wheel hub during the measurement. Correct measurement is only possible by pulling and pushing parallel to the wheel axle. Incorrect measurement will result in the set wheel bearing play being too small. This can then lead to wheel bearing damage.
		Check wheel bearing play at front axle
8	Tighten the Allen bolt (9i), check the wheel bearing end float again	-
		-
9	Remove the dial indicator (022) with dial indicator holder (015)
	Install
10	Fill hub cap (9e) with high-temperature roller bearing grease
11	Mount hub cover (9e)
12	Undo wheel bolt (48a)
13	Mount front wheel
	Remove/install wheels	-
	Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work.	Before starting engine, actuate brake pedal several times until the pressure is built up and maintained in the brake system.
14	Push down brake pedal several times

Test specifications for wheel location, wheel hub 

Wheel location, hub 

Wheel hub, cap