Schwing SPB 28, Operation Manual

Page: 87 / 216

GENERAL RULE S
700+smgr.fm
PAGE 57
S AF ETY M AN U AL
15.8
Crushing hazard! Secure the placing boom and relieve all
pressure before working on the boom hydraulic system.
15.9
Only operators should operate the unit. If work on the
machine requires that it be operated and you are not qualified as an operator, you
must get someone who is qualified to assist you.
15.10
Electrocution hazard! Repair work on electrical systems
over 28 volts must be done by qualified electricians.
15.11
Explosion hazard! Be sure that you understand the potential
danger of spring-loaded or compressed-gas components before you service
them.
(Examples: nitrogen accumulators, gas springs for toolbox doors, tires, brake
chambers, holding valves, hydraulic cylinders that were removed for repair, etc.) If
you don’t know the dangers, call the manufacturer
before beginning work!
15.12
If you will be working in a hidden area inside the machine, lock
it out as follows.
• With a gas or diesel engine, remove the ignition key and place a Do Not Oper-
ate sign on the controls. Carry the key with you.
• With an electrically driven pump, lockout the main breaker and tag the con-
trols.
The above rules are one simple “Lockout/Tagout” procedure. A procedure may
also be provided in the operation manual for the unit and there may be state or
local regulations that require a more advanced or stringent Lockout/Tagout pro-
gram. Be aware of the regulations in your area.
15.13
Never activate the system hydraulics without checking if
another workman is in a hidden position. Always yell “clear” before starting
the engine or electric motor, and allow time for response.
15.14
Never work on a pressurized hydraulic system. Stop the
engine or electric motor and relieve the accumulator circuit (if so equipped)
before you open the hydraulic system. This includes working on holding valves,
because they may be under pressure, even if the hydraulic system is off.
15.15
Do not remove any holding valve unless you understand the
procedure provided by the manufacturer.
15.16
When a hydraulic cylinder has been opened for any reason it is
important to remove the air per manufacturer’s instructions before the machine is
put back in service.
15.17
Never use gasoline or diesel fuel as a cleaning solvent. This
is critical to remember when cleaning hydraulic oil reservoirs, because gas and
diesel fuels are highly explosive and
traces left in the oil may ignite when com-
pressed!
WARNING
WARNING
DANGER
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING