Case WX90, Service Manual

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SAFETY PRECAUTIONS
SR2-1-1
15501 9-35990
GENERALITIES
Read the Operator's Manual carefully before starting,
operating, maintaining, fuelling or servicing the machine.
Carefully read the explanation to each and all safety
signs in the special section of this Manual before
starting, operating, maintaining, fuelling or servicing
the machine.
Machine-mounted safety plates are colour coded
yellow with black borders when they refer to points
where special
ATTENTION must be paid and failure
to observe them may cause a serious DANGER to the
integrity of machine operators. They are white with
red borders and black lettering when they refer to a
FORBIDDEN practice.
It is fundamental that all machine operators know very
w e l l t h e m e a n i n g o f e a c h s a f e t y p l a t e a s t h i s
c o n s i d e r a b l y d e c r e a s e s o p e r a t i n g h a z a r d s a n d
accidents.
Do not allow unauthorised personnel to operate or
service this machine.
Do not wear rings, wrist watches, jewellery, loose or
h a n g i n g g a r m e n t s , s u c h a s t i e s , t o r n c l o t h i n g ,
scarves, unbuttoned or unzipped jackets that can get
caught in moving parts. Wear certified safety clothes
such as: hard hat, no-slip footwear, heavy gloves, ear
protection, safety glasses , reflector vests, respirators
every time the job requires it. Ask your employer
a b o u t s a f e t y r e g u l a t i o n s i n f o r c e a n d p r o t e c t i v e
equipment.
Always keep the operator’s compartment, step plates,
grab-rails and handles clean and clear of foreign
objects, oil, grease, mud or snow to minimise the
danger of slipping or stumbling. Remove mud or
g r e a s e f r o m y o u r s h o e s b e f o r e o p e r a t i n g t h e
machine.
Do not jump on or off the machine. Always keep both
hands and one foot, or both feet and one hand in
contact with steps and/or grab rails.
Do not use controls or hoses as hand holds. Hoses
and controls are movable parts and do not provide
solid support. Besides, controls may be inadvertently
m o v e d a n d c a u s e u n e x p e c t e d m o v e m e n t o f t h e
machine or its attachments.
Never operate the machine or its attachments from
any position other than sitting in the driver’s seat.
Keep head, body, limbs, hands and feet inside the
o p e r a t o r ’ s c o m p a r t m e n t a t a l l t i m e s t o r e d u c e
exposure to external hazards.
Be careful of possible slippery conditions of the steps
and hand rails as well as of the ground around the
machine. Wear protective boots or shoes with the
soles made of highly no-slip rubber.
Do not leave the machine until it has come to a
complete stop.
Always check height, width and weight limitations
which may be encountered in the working site and
ensure the machine does not exceed them.
A s s e s s e x a c t p a t h s o f g a s d u c t s , w a t e r m a i n s ,
telephone lines, sewers, overhead and underground
electric lines and all other possible obstacles.
S u c h p a t h s s h o u l d b e o p p o r t u n e l y d e f i n e d b y
competent Authorities. If necessary, require that the
service is interrupted or said installations are moved
prior to starting the work.
You must know the working capacity of the machine.
Define the rear upperstructure swing area and provide
for opportune barriers to prevent access into it.
Never exceed machine lifting capacity.
Remain within the limits shown in the loading capacity
chart located on the machine.
STARTING
Never start or operate a failed machine. Walk all
around
the machine before mounting.
Before operating the machine, make sure that any
possible dangerous condition has been properly
removed. Before starting machine, check that steering
and attachment controls are in the neutral position
a n d t h e s a f e t y l e v e r i s i n t h e L O C K p o s i t i o n .
I m m e d i a t e l y r e p o r t a n y m a l f u n c t i o n o f p a r t s o r
systems to the maintenance managers for proper
action.
Prior to starting the engine, check, adjust and lock the
driver’s seat for maximum riding comfort and control
accessibility. Prior to operating the machine and/or its
attachments, check that bystanders are outside the
machine operating range. Sound the horn.
Obey all hand signals, safety indications and signs.
Due to the presence of flammable fluids, never check
fuel level, refuel, charge the batteries or use the
starting fluid in the presence of smoking materials,
open flames or sparks.
Ensure that nobody is within the excavator operating
area before starting the machine, swinging the upper
structure or moving in any direction.
Adjust all rear-view mirrors for maximum visibility of
the area behind the machine.
Ensure that engine speed is appropriate to the job to
be carried out.
If any hydraulic control or system exhibits erratic
p e r f o r m a n c e o r r e s p o n d s a b n o r m a l l y , h a v e t h e
machine checked for air in the system.
Air in these circuits may cause incorrect movements
w i t h c o n s e q u e n t a c c i d e n t h a z a r d . R e f e r t o t h e
Operator's Manual about corrective action to be taken.
OPERATING
D o n o t r u n t h e e n g i n e o f t h i s m a c h i n e i n c l o s e d
buildings without proper ventilation capable to remove