URAL Motorcycles 2000 -10 series, Руководство по ремонту, Страница: 51 / 193

2.3 Front Fork and Suspension
Two different types of front suspension are available. The telescopic fork and the leading link type
("lever type"). Both types are carried in the steering head on ball bearings.
Telescopic Fork
The telescopic front fork is equipped with inside springs and double-acting hydraulic shock absorbers.
The
front fork (Fig. 2.3-1) is made up of stem (8) , the steering column with bridge (16) , cross-piece
(3) , two fork legs with shock absorbers and the steering damper. Each fork leg is primed with 0.3 pints
/ 135 cc of oil through the holes of tightening nuts (11) .
Repairing the Telescopic Fork:
It is possible to partially dismantle or repair the fork without taking the entire assembly off the
motorcycle.
Dismantling the front fork leg:
(with the front wheel removed, the front fork remaining on the motorcycle).
The required tool is mandrel 348-250 for mounting the seal body on the fork leg tube.
•
unscrew the coupling nut tightening the fork leg tube to the cross-piece, pull up the shock absorber
rod, loosen the shock absorber rod locknut and screw off the coupling nut
•
insert the front axle into the fork left tip and use a radius wrench to turn off the seal assembly
•
pull the fork leg tip down from the fork leg tube together with the shock absorber and the spring
•
drain oil from the fork leg tip
•
remove the circlips fastening the lower bushing of the fork leg tube, remove the lower
bushing, the upper bushing of the fork leg tube and the seal assembly
•
slacken by two to three turns the nut of the clamp bolt of the triple clamp (“bridge”) and pull the
fork leg tube down (to facilitate this operation, screw the coupling nut on the end of the fork leg
tube by four to five threads and knock off the tube from the cross-piece taper by striking lightly
with a rubber hammer).
Wash and inspect all the removed assembly units and parts, replace defective ones, if necessary.
Note: To drain oil remove shock absorber rod nut and top nut, remove table pinch bolt and remove
complete tube and leg, turn upside down and drain the oil.
The positive and negative allowances between mating members provided by the factory are given in
Table 2.3-1, and the tolerated limits of clearances and wear in the principal mating members are given
in Table 2.3-2.
Check the condition of
•
the cross-piece and bridge, look for cracks, bends, dents, deformation.
•
the fork leg bushing and fork leg tubes, wear of friction surfaces, cracks, surface pitting.