Maintenance - New Holland LW270 Service Manual

LW270
such as: inclines, overhangs, trees, demolition rubble,
fires, ravines, steep slopes, rough terrain, ditches, crowns,
ridge trenches, heavy traffic, crowded parking and service
areas, closed ambients. In such conditions, proceed with
extreme care.
When ever possible, avoid going over obstacles such as
very rough terrain, rocks, logs, steps, ditches, railroad
tracks. When obstructions must be crossed, do so with
extreme care and at an angle, if possible. Slow down and
select a lower gear. Ease up to the break-over point, pass
the balance point slowly and ease down the other side.
In steep down-hill operation, do not allow the engine to
over-speed. Select the proper gear before starting down
grade.
Avoid crosswise hill travel, whenever possible. Drive up
and down the slope. Should the machine start slipping
sideways when going uphill, steer and turn machine front
immediately downhill.
The gradient you may attempt to overcome is limited by
factors such as ground conditions, load being handled,
machine type and speed, and visibility.
There is no substitute for good judgement and experience
when working on slopes.
Avoid operating the attachment too close to an overhang
or high wall, either above or below the machine. Beware of
caving edges, falling objects and landslips. Remember
that such hazards are likely to be concealed by bushes,
undergrowth and such.
When pushing- trees over, the machine must be equipped
with proper overhead guards. Never drive a machine up the
roots, particularly while the tree is being felled. Use extreme
care when pushing any tree over with dead branches.
Avoid bushes, logs and rocks.
NEVER DRIVE OVER THEM, or over any other surface
irregularities that discontinue adherence or traction with
the ground, especially near slopes or drop-offs.
Be alert to avoid changes in traction conditions that could
cause loss of control. AVOID driving on ice or frozen
ground when working on steep slopes or near drop-offs.
Working in virgin rough terrains is characterized by the
presence of all the perils and risks listed above. In these
conditions, it is emphasized the danger represented by
large tree limbs (possibly falling on the machine), large
roots (which may act as a leverage under the machine
when up-rooted and cause the unit to overturn), etc.
STOPPING
When the machine is to be stopped for whatever reason,
do so following the instructions given in chapters
"Stopping the machine" and "Shutting off the engine"
in the Operation and Maintenance Instruction Manual.
Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)
SAFETY RULES
Always remember to move the gearshift lever to the neutral
position and engage the control lever lock for safety
purposes.
Apply the parking brake (if fitted).
NEVER LEAVE THE MACHINE UNATTENDED with the
engine running.
Prior to leaving the operator's seat,and after making sure
that all personnel are clear of the machine, always slowly
lower the attachment until resting it safely to the ground
Park the machine in a non-operating and no-traffic area.
Park on firm level ground. If this is not possible, position the
machine at a right angle to the slope, making sure there is
no danger of uncontrolled sliding. Apply the parking brake.
If parking in traffic lanes cannot be avoided, provide
appropriate flags, barriers, flares and signals as required to
adequately warn the oncoming drivers.
Keep head, body, limbs, hands and feet clear of the dozer,
arms, bucket or ripper when raised.
Always switch off the battery isolator switch before
servicing the machine in whatever manner (i.e., cleaning,
repairing, maintaining,
machine is to remain parked for prolonged periods of time
to avoid accidental or unauthorized starting.
Never lower the attachments without sitting in the
operator's seat. Sound the horn. Make sure that
nopersonnel is within the machine operating range. Lower
the attachment slowly. DO NOT USE FLOAT POSITION in
case of hydraulic controls.
Securely block the machine and lock it every time you leave
it unattended. Return keys to authorized security. Perform
all necessary operations as detailed in the Operation and
Maintenance Instruction Manual. Apply the parking brake
(if fitted) every time you leave the machine.

MAINTENANCE

GENERALITIES
Before operating or performing any intervention on the
machine:
- carefully read all the norms contained in this Manual;
- read and observe all safety plates and instructions
located on the machine.
Do not allow unauthorized personnel to service the
machine. Do not carry out any maintenance work without
prior authorization. Follow all recommended maintenance
and service procedures.
Keep the operator's compartment free of loose objects that
are not properly secured.
Do not wear rings, wrist watches, jewellery, loose or
hanging garments, such as ties, torn clothing, scarves,
0 - 3
etc.). Do the same when the