Dongfeng EQ1030T47D-820. Manual — part 18

Front suspension

FA-24

Upper and lower ball head pin

Disassemble and assemble

Disassemble the upper and lower transverse arm. See "Steering knuckle".

Check

Shock at direction A (see the the right figure), and

check the ball head pin.

See "Maintenance data & explanation" for reference.

If the torque A is not in the required range, replace the ball head pin.

Check the ball head pin for its driving torque B.

See "Maintenance data & explanation" for reference.

If torque B is not in the required range, replace the ball head pin.

Check the ball head pin vertical clearance C.

See "Maintenance data & explanation" for reference.

If the clearance value is over than the required range, replace the ball head pin.

Check the dust proof for damage.

Note:
If the ball head pin is new, and the dust proof is damaged, replace the dust proof under the quide of the pro-

fessional person. If the ball head pin is in use, and the dust proof is damaged, replace the ball head pin assem-
bly.Only replace the dust proof is forbidden.

Front suspension

FA-25

Maintenance Data & Explanation

Torsion bar spring

Length mm 1000

Diameter mm 30

Shock absorber

Diameter A mm 54

Diameter B mm 45

Recover risistance N 2250

±350

Compression resistance N 1000

±200

Check and adjustment

Front alignment (no load)

Wheel camber: -0

°25´~

0

°35´

Caster: 0

°15´~

1

°15´

King pin inclination: 7

°50´~

8

°50´

Difference value of left and right wheel alignment (wheel camber, caster, king pin inclination: less than

45´

Toe-in mm 0~2

Front wheel maximum turning angle

Inside turning angle:35

°~

36

°

Outside turning angle: 27

°~

29

°

Front suspension

FA-26

Vehicle gesture (no load)

Lower transverse arm central height H mm 139~145

No load: full fuel, coolant, lubricant, and original tyre, jack and driver tool, vehicle is parked on the level

ground.

Ball head pin

Hub bearing

Upper ball head pin

Lower ball head pin

Swing force A (N)
(Measure position: cotter pin hole)

19.6~122.6

9.8~39.2

Driving torque B (N.m)

1.0~4.9

1.0~3.9

Vertical clearance limit C (mm)

0.1~1.0

0.1~1.0

Hub bearing locking nut
Tightening torque N.m

34~39

Loose locking nut first then tighten again N.m

34~39

Withdrawal angle

45

°~

120

°

Hub bearing driving moment N.m

9.8~27.5

Axial clearance mm

0

Rear axle & Rear Suspension

RA

TOC

Precaution

. . . . . . . . . . . . . . . . . . . . . . . . . .RA-1

Rear Axle and Rear Suspension

. . . . . . . . . . . . . . . ..RA-2

Rear Axle

. . . . . . . . . . . . . . . . . . . . . . . . . ..RA-4

Rear Suspension

. . . . . . . . . . . . . . . . . . . . . . ..RA-9

Maintainance Data and Explaination

. . . . . . . . . . . . ...RA-13