IBM 353 Customer Engineering Reference Manual Download Page 25 | Manualshive

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Summary of Contents for 353

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Page 2: ...ES DATE TYPE DcD INSTALLED 353 354 SYSTEM DIAGRAMS PLANT INSTALLED SPECIAL FEATURES EC LEVEL DESCRIPTION QTY DESCRIPTION QTY FIELD INSTALLED SPECIAL FEATURES CEM DIAGRAM INSTALLED REMOVED NO OR S M NO...

Page 3: ...ent ________________ Address _________________ If this manual is misplaced it should be returned to the above address 1710 0w r t _ J l M Customer Engineering Reference Manual til 353 Disk Storage 354...

Page 4: ...age and the 354 Disk Control Most of the service checks adjust ments and removal and replacement procedmes for the 353 Disk Storage are the same as those for the 1301 Disk Storage The procedmes that a...

Page 5: ...replace ments waveforms levels and performance tests of machine areas and functional units 2 1 SERVICE AIDS This section contains specific trouble symptoms and cures scope aids lubrication charts and...

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Page 7: ...only from the rear of the supporting strut Power Supplies When a DC failure is sensed a DC off sequence is initiated but power remains on at the gate blowers convenience outlets and disk drive motor...

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Page 9: ...ipers are not Refer to 1301 CE Heference Manual 227 5583 1 11 62 dry and that the way is not dirty 11 Replace actuator shield 12 Before applying power check that the voltage at outlet agreos with the...

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Page 11: ...s are listed in the Scheduled Maintenance Routine Chart During normal scheduled maintenance perform only those operations listed on 227 5583 1 11 62 SECTION 1 SCHEDULED MAINTENANCE Mechanical Units El...

Page 12: ...mum access time should be 84 milliseconds 2 Set the address of any cylinder 16 through 63 into the access register Set and reset the register Maximum access time should be 153 milliseconds 3 Set the a...

Page 13: ...seal appears saturated the seal is Ieaking and should be replaced Check felt oil retainers Replace when over saturated with oil Check system pressure 550 10 PSI Check pressure differential across mech...

Page 14: ...Figure 1 2 Short Stroke I_At least 7ms Figure 1 3 Long Stroke 1 4...

Page 15: ...Output Shaft Seal Detent Safety Transducer Detent Detector Motion Oscillator Access Time Access Cover Hydraulic Power Supply Hydraulic Power Supply as an Assembly Oil Level System Pressure Relief Valv...

Page 16: ...ACCESS TIME Service Check Access time is the interval from the instant that a change in the track portion of the locate register is detecteduntil the end of the operation trigger is set Sync on the de...

Page 17: ...l that appears at these pins for a value offrom 6 v to 6 25 vby means of the potentiometer on the AGC Detector A UE 5 If this voltage level cannot be obtained the AGC Detector AUE the Variable Gain 22...

Page 18: ...rect Index Pulse N N Figure 2 2 Incorrect Index Pulse Figure 2 3 Voltage Output of Second Unear Amplifier J NU J AGe Burst _tRecover Time aUiescent About 50 sec level Figure 2 4 Read Amplifier Clippin...

Page 19: ...the use of voltages that can damage or destroy the transistors For the majority oflogic block cases a properly placed ground will create the effect de sired All other cases must be treated individuall...

Page 20: ...s time can be caused by failure of the oscillator to switch to high speed SERVICE CHECKS Access Cover Safe Switch Then the access cover door is opened or removed this switch will open and cause 3 2 1...

Page 21: ...is always directed through the timer 180 second contact The disks and the timer therefore must run for 180 seconds before the heads can be loaded In a stop sequence the heads must be un loaded before...

Page 22: ...remove particles of dirt The head unload switch is for manual unloading of the heads In any s top sequence the heads must be unloaded before the disk array can be stopped 3 4 Before the heads can be l...

Page 23: ...Figure 3 1 CE Power Sequence Panel 227 5583 1 11 62 Service Aids 3 5...

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Page 25: ...d Air Power ompressor Supply N oechonical Frame Front CJD 6 Panels of II Read Airi liers DD Electronic Frame Solenoid Drivers Clock Mot Det Detent Controls Right Side With Electronic Gates Open Figure...

Page 26: ...Figure 4 2 Electronic Frame 4 2...

Page 27: ...Magnetic Filter Pressure Switch Thermal Valve Adjust Figure 4 3 Hydraulic Power Supply 227 5583 1 11 62 Filler Cap il Level Si ght Gage Oil Temperature Thermometer Locations 4 3...

Page 28: ...TB 205 TB 204 TB 203 K2 200 201 D D O L 1 D D O L 2 Ground Bus CBl CB3 K3 O P O L l CB2 Fuse O P O L 2 12 K4 Figure 4 4 Power Contactor Box 4 4...

Page 29: ...Breaker _ O i l Pump Overload Reset 30 Amp OFF HAZAIWOUS lRAINlO SIR IC mSONNEl ONLY LINE VOLTAGE PRESENT WITH MACHINE POWER OFF CI2 Circuit Breaker _ _ _ Figure 4 5 Power Contactor Box Covered 227 55...

Page 30: ...l Figure 4 6 Power Sequence Gate 4 6 CE Power Sequence Panel Timer...

Page 31: ...Xl 227 5583 1 11 62 PiN 460999 PiN 460852 SECTION 5 SPECIAL TOOLS AND SUPPLIES Disk Aligning Kit 5 2 Hoist for Shaft Motor 5 2 Hydraulic Power Supply Replacement Kit S 2 Applicable Customer Engineeri...

Page 32: ...108247 Disk Alignment Kit B M 2108433 and Shaft Motor and Instructions B M 5 2 2115248 must be ordered from the E P C Special tools required for motor replacement will be shipped with the shaft motor...

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