Tadano TT-800XXL1, Service Manual

Page: 3 / 267

Safety
2
WA01-0041E
1. Fundamental cautions
Servicemen inexperienced in the units of this machine
should be cautious about safety operations. They
must acquire sufficient knowledge about the
equipment before dismounting and disassembling it.
Before dismounting each component, a serviceman
should read this service manual thoroughly and find
out the weight of the component, then lift it by proper
means.
The following are cautions to be observed all the time.
1. Before starting repairs, find out the origin of the
problem. When it becomes clear that
disassembly and maintenance are necessary, first
of all read this manual and parts catalog and
thoroughly understand the principle of operation
and construction. Then carefully check and
examine each portion. Don't disassemble
portions unrelated to the problem. Unless taking
all possible measures before starting disassembly,
new troubles or decline in performance may be
induced.
2. Before operating the machine, oiling or repairing,
read warning labels and instructions on the
machine and understand the contents.
3. Wear a safety helmet and safety shoes whenever
you carry out maintenance operation around the
machine. Be sure to wear safety goggles when
you hit the machine or its attachments with a
hammer. In welding operation, wear safety gears
such as leather gloves, helmet, goggles, apron
and proper working clothes, but don't wear loose
or torn clothes. Take a ring and so on off your
finger when you conduct maintenance or repair.
4. Park the machine on as level and hard ground as
possible. Place chocks under wheels to prevent
the vehicle from moving when doing maintenance
on or below the machine.
5. Before starting maintenance, remove cables to the
battery and allow the capacitors to discharge.
Pull out the ignition key and hang a tag saying,
"Don't start the engine." in the cab.
6. Don't carry out maintenance while lifting the
vehicle with only a jack or a hoist. Sustain the
vehicle positively with blocks and so on to prevent
fatal accidents, as there is a possibility that the
vehicle loses its balance and falls down on a
worker in a dismounting process of certain units.
7. When the working is done on a team of more than
one person, make arrangements about
co-operation and communication between workers
beforehand. Give a sign without fault and make
sure that the sign has been transmitted to other
workers before starting the next operation.
8. When it is inevitable to measure oil pressure,
rotational speed, and temperature for machine
inspection without stopping the engine, be careful
not to be caught or pinched in rotating or moving
parts such as a fan, fan belt. Make sure that
there is no obstruction or no person around the
machine before operating it.
2. Cautions in working
2.1 General
1. When hoisting up components weighing more than
20 kg, use hoist or the like to prevent injury to your
lumbar or spine. For specific components, their
weights are listed on the chapter for "service data"
in this manual.
2. When using eyebolts, lift parts vertically so that
only tension is applied to them.
3. Protect wire ropes and plastic lifting slings by
covering corners with pads so that they are not
bent sharply by directly contacting corners.
Keep the sling angle of wire ropes within 60
°
and
as vertical as possible.
4. Be careful about hot or heated portions when
conducting repair or maintenance just after the
vehicle has stopped or the machine operation has
been finished or interrupted.
5. When hitting parts, be sure to either hit on a pad
placed on the parts or use a plastic hammer.
6. Put units, especially similar parts, in order. Mark
them with tags or marker if necessary.