IBM 3745 21A Installation Instructions Manual page 14

Installation Instructions
IBML
10.5.2 PSTY1B installation
1. Install the PSTY1B support asm (PN
1
71F9950) and secure it at the bottom
and at the top left with 3 screws provided
in the bag attached to it.
Do not tighten the screws.
2. Install the PSTY1B (PN 26F1733)
3 screws (PN 2665528) provided in the
bag attached to the support bracket.
3. Tighten the bottom screws of the power
supply bracket.
Feed the PSTY1B power cable to the
front of the machine.
4. Loosen the screw securing the bracket
3
that secures the air filter and install
the air filter (PN 58X9295) under the CCU
enclosure.
Note the arrow direction for the air flow.
Tighten the screw.
5. Connect the FDS ground cable
frame. Secure it with the screws saved
in Step 10.2.1.
3745 PN 17G5534 EC C38405
FFBM 14 of 22 06APR93
14
2
with
4
to the
EC C38405A EC D55799
17JUN93 16SEP94
6. Connect the FDS cables
PSTY1B with screws (PN 61F4511) pro-
vided in a bag attached to the power
supply.
Connect the cables on TB1/TB2 first.
7. Connect the power control bus cable to
the connector J2 of the power supply
8. Locate the Power On Reset cable (PN
61F4448) connected in the SACL
01B-A1Z2-D. Route the cable to PSTY1B
and connect it to connector J1
9. On PSTY1B, check that the switch 1 is
8
set to A (CCUA) .
EC D55883 EC E27926
11MAY95 14MAR97
5
to the
6
.
7
.