Skoda Felicia

since 1994 release

Repair and operation of the car

The angles of installation of wheels of the car - the general information

Controllability of the car and service life of protectors considerably depend on the clearness of basic installations of geometry of a suspension bracket and the steering drive. Before starting adjustment of geometry of a suspension bracket make sure that tires are pumped up with the correct pressure, disks are not bent, stupichny bearings are not worn-out, and the drive of steering is not stirred up. All parameters defining geometry of a suspension bracket are measured in-degree units (also linear units [mm] can be applied to definition of convergence). The axis of turn of a wheel is meant as the imagined line drawn through an axis of a rack of a suspension bracket and continued before contact with the earth. The geometry of a forward suspension bracket is defined by four parameters.

Disorder is called the corner on which the planes of wheels are rejected from a vertical. Disorder is called positive when the upper edges of wheels are rejected from a vertical outside. Otherwise speak about negative disorder. Adjustment of disorder is not represented possible.

Corner of a longitudinal inclination of an axis of turn of a wheel is called the corner on which the axis of turn of a wheel is rejected from a vertical in the disk plane. The corner is considered positive when the axis is inclined by the top end back. This parameter is also not subject to adjustment.

Convergence is called the size at which distances between lobbies and the rear edges of inside of rims of disks of wheels differ. At positive convergence the rear edges of disks are placed more widely, than lobbies and vice versa. Adjustment of convergence of forward wheels is made due to adjustment of length of steering drafts by an otdavaniye or a navorachivaniye of external tips. Convergence of back wheels is not regulated.

Corner of a cross inclination of an axis of turn of a wheel is called the corner, between a vertical and the imagined line drawn through suspension bracket rack support at a view of the car in front or behind. Adjustment is not provided again.

CHECK

PERFORMANCE ORDER

In view of need of application for measurement of geometry of a suspension bracket of the precision equipment, performance of check and adjustment of parameters should be charged to specialists of car repair shop.

Adjustment of convergence of forward wheels

PERFORMANCE ORDER

1. Check of convergence is made by measurement of distance between lobbies and the rear edges of internal rims of disks of wheels. Adjustment is carried out by adjustment of length of steering drafts.
2. For purity of the removed measurements the car has to have net weight, i.e. to be unloaded at the filled fuel tank.
3. Before starting adjustment make sure that the car is completed with wheels of the required standard size, tires are pumped up with the correct pressure, disks are not bent, stupichny bearings are not worn-out, and the drive of steering is not stirred up. Rectify everything debugged and violations.
4. Park the car on the flat horizontal platform with a hard coating. Bring forward wheels into rectilinear situation, then shake a car body in front and behind for shrinkage of components of a suspension bracket. Release the parking brake and roll away the car on 1 m back, then return it to former situation - at the same time from components of a suspension bracket and the steering drive any residual stress has to be removed.
5. Measure distance between forward edges of inside of rims of disks of forward wheels at nave height, then repeat measurement, this time having measured distance between the rear edges of rims. Results of measurements have to differ from each other at a size stipulated in Specifications (the rear edges of wheels have to be placed more widely than lobbies).
6. In case of need corrections of convergence, cock the parking brake, then a front of the car and establish to a poddomkratta it on props turn a steering wheel to the left against the stop and count quantity of naked rounds of a carving since the external end of a bar of the left steering draft. Turn a wheel to the right and repeat measurement for the right draft. If results of measurement are identical to both drafts, correction of convergence is made by a navorachivaniya/otvorachivaniye of external tips of drafts on identical quantity of rounds. Otherwise the distinction taking place should be compensated in the course of adjustment.
7. First of all clean a carving on the ends of steering drafts. In the presence of corrosion moisten drafts with the special softening structure. Release external bandages of fastening of protective covers of the steering mechanism, delay them back and fill inside lubricant to avoid twisting of covers at rotation of bars.
8. Arm with the measuring instrument of planeness and mark with a chertilka the provision of bars of steering drafts in relation to the external tips, then record bars and completely release lock-nuts.
9. Modify the total length of drafts. Rotate bars Rozhkov the key which is put on specially provided lysk. Reduction of length of drafts (a vvorachivaniye them in tips) will lead to reduction of convergence of wheels.
10. Having finished adjustment, record bars of drafts and tighten lock-nuts of tips with the required effort. Make sure of correctness of landing of hinges of tips in the reception nests and count quantity of naked rounds of a carving on bars of both drafts. If results of calculation for one bar differ from results another, therefore adjustment was made unevenly and one of wheels at commission of turns can cling to a wheel arch. Besides, symmetry of landing of a steering wheel on a column shaft will be broken.
11. If length of both drafts is identical, lower the car on the earth and repeat convergence check. In case of need repeat adjustment. Having achieved satisfactory result, finally tighten lock-nuts of tips of drafts with the required effort, and check serviceability of landing of protective covers and fix them by bandage tapes.

Check of parallelism of installation of the back bridge

PERFORMANCE ORDER

1. The possibility of correction of geometry of a back suspension bracket on cars of the considered brand is not provided, however it is important to make sure of parallelism of the back bridge to a forward stretcher. For performance of this check it is the best of all to use the special company conductor of production of the Skoda company.

And — the Center of an assembly bracket of the back bridge
In — the Directing openings in a forward stretcher

2. Prop up wedges forward wheels, then a back of the car and establish to a poddomkratta it on props.
3. Measure distance from the rear edge of a forward stretcher to the line drawn through the centers of assembly brackets of the back bridge. This distance has to be identical on both sides of the car. otherwise parallelism of installation of the back bridge is broken and adjustment is required.
4. For performance of adjustment weaken fixing bolts of assembly brackets of the bridge and as appropriate displace arms. Having achieved satisfactory result, tighten fixture with the required effort.
5. Make sure of correctness of adjustment, then lower the car on the earth.