Daewoo Nubira. Manual — part 230

6A – 10

I

POWER STEERING SYSTEM

DAEWOO V–121 BL4

4. Connect the supply line outlet pipe to the power

steering gear.

Tighten

Tighten the steering gear outlet pipe fitting to 27 N

S

m

(20 lb–ft).

5. Connect the supply line to the retaining clip on the

engine compartment right sidewall.

6. Connect the pressure line to the retaining clip at the

bottom of the radiator.

POWER STEERING SYSTEM 6A – 11

DAEWOO V–121 BL4

7. Connect the pressure line pipe and the supply line

hose to the inlet and the outlet connections on the
power steering pump.

Tighten

Tighten the power steering pump pressure line union
nut to 27 N

S

m (20 lb–ft).

Notice : When adding fluid or making a complete change,
always use DEXRON

®

–III power steering fluid. Failure to

use the proper fluid will cause hose and seal damage and
fluid leaks.

8. Fill the fluid reservoir with power steering fluid.
9. Inspect for leaks. If there are leaks, correct the

cause of the leaks and bleed the system. Refer to
”Bleeding the Power Steering System”in this sec-
tion.

Power Steering Fluid Reservoir Hose

Removal Procedure

1. Siphon the power steering fluid from the fluid reser-

voir.

2. Disconnect the supply line outlet pipe from the out-

let connection at the steering gear.

3. Disconnect the fluid reservoir hose from the fluid

reservoir.

4. Remove the power steering fluid reservoir hose.

6A – 12

I

POWER STEERING SYSTEM

DAEWOO V–121 BL4

Installation Procedure

1. Install the power steering fluid reservoir hose.
2. Connect the fluid reservoir hose to the fluid reser-

voir.

3. Connect the supply line outlet pipe to the outlet

connection at the steering gear.

Tighten

Tighten the steering gear outlet pipe fitting to 27 N

S

m

(20 lb–ft).

Notice : When adding fluid or making a complete change,
always use DEXRON

®

–III power steering fluid. Failure to

use the proper fluid will cause hose and seal damage and
fluid leaks.

4. Fill the fluid reservoir with power steering fluid.
5. Inspect for leaks. If there are leaks, correct the

cause of the leaks and bleed the system. Refer
to”Bleeding the Power Steering System”in this sec-
tion.

POWER STEERING SYSTEM 6A – 13

DAEWOO V–121 BL4

GENERAL DESCRIPTION

AND SYSTEM OPERATION

POWER STEERING SYSTEM

General Description

The power steering system consists of three components:
the power steering pump, the power steering fluid reser-
voir and the the power steering rack and pinion gear. The
power steering pump is a vane–type pump providing hy-
draulic pressure for the system and is powered by the en-

gine. It draws on the power steering fluid reservoir, which
in turn is connected to the power steering gear. A pres-
sure–relief valve inside the flow control valve limits the
pump pressure. The power steering rack and pinion gear
has a rotary control valve which directs hydraulic fluid
coming from the power steering pump to one side or the
other side of the rack piston. The integral rack piston is at-
tached to the rack. The rack piston converts hydraulic
pressure to a linear force which moves the rack to the left
or the right. The force is then transmitted through the inner
and the outer tie rods to the steering knuckles, which turn
the wheels.