IBM RS/6000 SP - Manual (Page 13)

DANGER
The remaining steps of the procedure contain measurements that are taken with power on.
Remember that hazardous voltages are present. (
SPSFD013)
DANGER
The frame main circuit breaker and the controller must not be switched on again now.
Before disconnecting the power cables from the power receptacles, ensure that the customer’s
branch distribution circuit breakers (customer power source circuit breakers) are Off and tagged
with DO NOT OPERATE tags, S229-0237. Refer to “Lockout safety procedures” in
RS/6000 SP:
System Service Guide, before proceeding. (SPSFD014)
DANGER
Before connecting ac power cabless to electrical outlets, ensure that:
v The customer’s branch distribution circuit breakers (customer power source circuit breakers)
are off and tagged with DO NOT OPERATE tags, S229-0237 (or national language equivalent).
v The activities in ″ Performing the Customer 50/60 Hz Power Receptacle Safety Check ″ have
been performed on all customer power source outlets and cable connectors. ( SPSFD015)
DANGER
Ensure that the customer’s branch distribution circuit breakers (customer power source circuit
breakers) to the ac power outlets are off and tagged with DO NOT OPERATE tags, S229-0237 (or
national language equivalent). (
SPSFD016)
DANGER
Both the SEPBU power chassis and the PDU 48 V dc power chassis are field replaceable units
(FRUs) which contain NO serviceable parts; they are labeled as such. Do not attempt to isolate
or repair these components, since doing so may result in severe injury or even death.
(
SPSFD017)
Caution notices
CAUTION:
The weight of the PDU assembly, 48 V dc power chassis, and the SEPBU power chassis is greater
than 18 Kg (40 lbs). Be careful when removing or installing. Remove all 48 V dc power supplies
from the power chassis before removing or installing the power chassis. (
SPSFC001)
CAUTION:
The unit weight exceeds 18 Kg (40 lbs) and requires two service personnel to lift. ( SPSFC002)
Safety and environmental notices xi