SSSPS Replacement

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	Not Applicable	120 minutes	15 minutes

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Standard Tool	1	-	-	-
Hoist Service Kit	1	-	5196226	-

Table 3. Replacement parts
Item	Quantity	Effectivity	Part number	Manufacturer
SSSPS	1	-	Refer to FRU Manual	-

Table 4. Safety

Warning

ELECTROCUTION HAZARD!

DANGEROUS AND OR FATAL VOLTAGES ARE PRESENT IN THE ENERGIZED CABINET.

Follow loto steps as given in first section of this document to disable and verify safe voltage levels.

CAUTION

The weight of SSSPS is 87 kg.

Notice

The unit can be withdrawn with rail slider.

Table 5. Required conditions
Condition	Reference	Effectivity
System Power must be turned OFF. Refer to LOTO for ISC.	-	-

Confirm that there is no input voltage at the terminal of SSSPS using DVM.

Figure 1. Voltage Check
Remove left front cover per following steps.
1. Open left front cover and remove a screw to disconnect GND cable.
2. Unlock the cover.
3. Lift up and remove the cover.
Figure 2. Cover removal

Note: If the service area is narrow, do the same for right front cover.
Perform the following steps.
1. Disconnect two connectors.
2. Remove six screws.
3. Remove Leak sensor assy.
Figure 3. Remove Leak Sensor
Drain the coolant.　Refer to Draining Operation before replacing RF Amp, SSSA, or SSSPS.

Warning

Failure to properly drain unit of coolant will result in damage to unit due to freezing during transit.

Disconnect the IN and OUT quick couplers of SSSPS from the water manifold.

Note: When disconnecting the quick couplers, move the couplers in parallel not to damage it.

CAUTION

When installing the couplers, insert the coupler to water manifold until click sounds.

Connect the IN and OUT of quick coupler.

Set the Universal Lift Hoist onto ISC top.　Refer to Hoist Setup.
Perform the following steps.
1. Disconnect all cables.
2. Remove two M5x40mm screws installed at both side.
3. Loosen 4 screws which are tightening SSSPS front panel to the chassis.
4. Screw two M5x40mm screws at two push out screw holes to push the SSSPS to the chassis and gradually slide it out from Cabinet.
Figure 6. Slide SSSPS out
Install Hoist Brackets to SSSPS.

Figure 7. Hoist Brackets
Perform the following steps.
1. Hook the winch and spreader bar from the hoist kit to the lifting bracket named “SSSPS”
2. Ratchet the winch to tighten the chain.
3. Press the release tabs in on each side and remove the 2nd slide rail from 1st slide rail.
Figure 8. Hoist Operation
Use the hoist and slowly lower the SSSPS Chassis to the top of FRU box.
Remove the two hoist brackets from SSSPS chassis.

Warning

Never short the terminal of SSSPS.

Install SSSPS in the reverse order of the removal.

Note: Use two M5x40mm screws to pull in the SSSPS.

Note: Use 4 captive screws to fix the SSSPS firmly.

Note: Make sure to connect all cables and hoses.

Notice

The RF Amp may be damaged if power is on without coolant inside. To avoid this situation, set the RF Amp Breaker to OFF Position before power ON for new FRU.
Set the RF Amp Breaker to OFF Position.
Figure 9. RF Amp Breaker OFF
Restore the System Power. Refer to Removing LOTO - ISC
Wait till pressure meter (black meter) of CCU moves for about 40 seconds.
Figure 10. Pressure meter
Turn the RF Amp Breaker ON
Figure 11. RF Amp Breaker ON
Refill Coolant. Refer to Refill Coolant.
Perform Doing DQA calibration.
Perform check scan.