IBM 2104 Model DU3 - Manual (Page 81)

CAUTION:
Do not insert hands or tools into the empty space that
contained the switch card assembly.
CAUTION:
Do not insert hands or tools into the empty space that
contained the SCSI interface card assembly.
CAUTION:
This product is equipped with a 3-wire power cable and plug for
the user’s safety. Use this power cable in conjunction with a
correctly grounded electrical outlet to avoid an electrical shock.
CAUTION:
Do not touch the power outlet or the power outlet face plate
with anything other than test probes before you have completed
this safety check.
CAUTION:
If the reading is not infinity, do not proceed. Make the
necessary corrections to the wiring before you continue. Do not
switch on the branch circuit CB until all the above steps are
satisfactorily completed.
CAUTION:
A 2104 Model TU3 can weigh up to 54.5 kg (120 lb) with the
maximum number of disk drive modules installed. Do not
attempt to lift one without help from a second person.
CAUTION:
Do not use the handles of the fan or fan-and-power-supply
assemblies to carry the 2104. These handles are not intended to
support the weight of the unit.
CAUTION:
As you push the assembly fully home, the lever automatically
moves toward its closed position. Ensure that your fingers do
not become pinched between the lever and the assembly.
Appendix B. Translated Safety Notices 65