Dongfeng DFA1063DJ10 (14)-301/303. Manual - part 11

Propeller Shaft

PR-1

Propeller Shaft

Technical Parameter

Maintenance Standard

                                                                                                                                                  Unit: 

mm

Tightening Torque

                                                                                                                                                     Unit:

N.m

Trouble Analysis

Type

Open type, tubular propeller shaft, two segments. The front 

segment is midship shaft with bearing, the rear is double uni-

versal joints with flange inner slide

Universal joint type

Spider type

Center bearing

Slide a little along lengthways in the center bearing seat

Universal joint max oscillatory angle

±

20°

Max spline slippage (mm)

54

Item

Standard dimension

Service limit

Remark

Radial motion of propeller shaft

0

~

0.75

1.5

Slip spline backlash

0.025

~

0.115

0.4

Clearance of universal joint and needle bear-
ing

-

0.1

Axial clearance of center bearing

-

0.5

Center bearing bearing seat inside hole sur-
face worn

-

0.05

ItemItem

Tightening Torque

Propeller shaft flange fork connecting nut

90

~

110

Center bearing locking bolt and nut

901

~

10

Trouble

Cause

Method

Abnormal vibration in the 
running

Connecting bolts on the propeller shaft loosely Tighten bolts or nuts

Propeller shaft vibration

Propeller shaft has not been reassembled in 
accordance with the mark on it
Propeller shaft tube is bent
Renewed major components without dynamic 
balance
Center bearing rubber washer slacken or failed

Reassemble it in accordance 
with the mark
Check or renew
Dynamic balance correct

Tighten or replace

Universal joint or slip yoke 
worn out early

Oil seal failed
Not fill grease regularly or not fill enough oil

Replace
Fill with enough lubricating 
grease periodically

Propeller Shaft

PR-2

Propeller Shaft

Structure

1.Flange fork
2.Bolt
3.Cross shaft needle bearing assy
4.Dust collar 
5.Cross shaft

6.Grease nipple
7.Snap ring for holes
8.Slip york assy
9.Grease fitting
10.Slip york oil seal

11.Oil seal spacer 
12.Oil seal cover
13.Propeller shaft assy

Propeller Shaft

PR-3

Intermediate Propeller and Center Bearing

Structure

Propeller Shaft Maintenance

Propeller shaft vibration

If the propeller shaft vibrates during high speed,

please first check its radial runout.

1.Support the rear axle up.

2.Turn the propeller shaft, and check one point of the

propeller shaft for its radial runout.

1.Flange fork
2.Cross shaft needle bearing assy
3.Dust collar
4.Cross shaft
5.Grease elbow
6.Snap ring for holes

7.Intermediate propeller shaft 
assy
8.Washer--center bearing seat
9.Center bearing bracket assy
10.Upper cover board--center 
bearing
11.Oil seal--center bearing

12.Bearing seat--center bearing
13.Bearing--center bearing
14.Flange--driving conic gear
15.Washer--driving conic gear nut
16.Hex slotted flat nut
17.Grease fitting

Propeller Shaft

PR-4

Measure point of the propeller shaft (mm):

A=155

B=165

C=185

3.If the radial runout is above the limit value, remove the

connecting flange of one end of the rear axle, and turn
it for 180° then install the propeller shaft.

4.Check the radial runout again, if it still beyond the limit

value, replace the propeller shaft.

5.Road tests.

Appearance check

Check the surface of the propeller shaft for any cracks or pit. If there were, replace the propeller shaft.

Disassembly and assembly

Make marks on the flange disc and remove the

propeller shaft from the end of the rear axle.

Pull the propeller shaft out from the power train, and

plug the protruded part of the power train with plug.