Golden Dragon XML6125CLE Repair Manual Download

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Steering System SR-19

Initial inspection

With respect to the steering problem, if you (service man) can confirm what users are actually relaying
and ensure you are discussing a same issue with them, you will save a lot of time in handling problems.
For example, if the customer tells you that steering is difficult, you should ascertain the specifics: is it left
steering difficulty, right steering difficulty, pivot steering difficulty, intermittent steering difficulty or no
boosting at all.

If any one of these problems is possible and under the condition of safety, drive the vehicle yourself. If
you are not familiar with driving, ask the customer to drive the vehicle and sit beside him, with your hand
on  the  steering  wheel  so  as  to  gain  a  direct  understanding  of  the  problem.  As  the  customer  generally
drives the vehicle with a load, you may load the vehicle if necessary in searching for the cause. Once you
have confirmed what has really been reflected by the customer, do not hurry to remove the steering gear
or oil pump. In fact, in most cases, there are many other parts in the steering system that may cause a
steering fault. Inspect these parts first before inspecting the steering gear.

Check the steering wheels first. Find out if the tyres have proper and balanced pressure, suitable size, and
if they are seriously worn or damaged.
Then check the front wheel alignment (kingpin caster, inclination, camber and toe-in) and the tightness of
steering  tie-rod,  ball  joint  and  kingpin.  If  the  customer  has  replaced  the  oil  pipe,  the  oil  pipe  may  be
wrongly installed, be too small in small diameter, or may be blocked, twisted or bent too much, leading to
unsmooth oil flow or insufficient flowrate. Oil pipes not conforming to requirements should be replaced.
Now check the power steering oil tank. Make sure the oil reaches the specified level. If the pump adopts a
belt transmission, check if the belt is slipping. The belt may be tight but may also be slipping due to wear.
A slipping belt does not always screech. Please adjust the belt according to the technical specifications.
If  there  is  no  problem  on  the  above  checking,  the  reason  led  to  the  malfunction  of  steering  maybe  the
insufficient  pressure  or  insufficient  flow;  in  this  case,  must  more  careful  analysis,  including  hydraulic
pressure test.

Caution:

When the hydraulic test is completed and the oil piping is reconnected, check the oil level in the tank

and discharge the air in the system (refer to “Oiling and discharge of steering system”)

Symptoms

Possible causes

Repair/preventive measures

hydraulic

boosting at a
cold start

The vane of hydraulic pump
can not freely extend out (vane
pump only).

Instantly increase the engine speed to throw out the
vane by its high speed rotation so as to start the oil
pump (for a seldom and short time case, there is no
need to check the oil pump.)

Golden Dragon XML6125CLE, Repair Manual

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