EXT556H turbo pump user manual

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EXT556H PAGE 18 INSTALLATION 1. Vent valve 2. Electrical supply connector 3. Backing port (NW25) 4. Purge plug 5. Earth bond point Figure 5 - Dimensions and features of EXT556H pumps Issue A 18 Aug 05
EXT556H The EXC controller provides the electrical supply to the EXT556H pump through the pump-to-controller cable. Connect and lock the bayonet connectors at the ends of the cable to the mating connectors on the pump and the EXC controller (if applicable). PAGE 19 The EXC controller is designed to allow a pumping system to be configured in a variety of ways, from a basic manually operated system to a fully automatic system with remote control. Refer to the instruction manual supplied with the controller to complete the electrical installation. It is the responsibility of the customer to ensure the stability of the system and the correct application of all electrical and vacuum connections. It is also the responsibility of the customer to ensure that no service connections present slip or trip hazards. WARNING Do not remove the EXDC controller/EXC controller cable from the pump until the pump has come to a complete halt. To do so would expose personnel to hazardous voltages and potentially damage the EXDC/EXC controller. INSTALLATION 3.7 Cooling 3.7.1 Introduction CAUTION You must cool the pump by forced-air or water cooling to prevent damage to the bearing. You must use water cooling in any of the following operating conditions: • When backing pressure is high (see Table 5). • When you bake the EXT pump or the vacuum system close to the pump. • When the ambient temperature is above 35 °C. • When there is high continuous gas throughput (see Table 5). In all other operating conditions, you can use forced air cooling. If you use forced air cooling you must ensure that there is an adequate supply of cooling air to the pump. 3.7.2 Forced air cooling An air cooler accessory is available for the EXT556H pump (see Section 7). Fit the air cooler as described in the instructions supplied with it. If you wish to use alternative air cooling, ensure that the flow rate is above 280 m 3 h -1 (80 l s -1 , 160 cfm). Aug 05 19 Issue A
Page 1 and 2: B777-50-880 Issue A Original Instru
Page 3 and 4: EXT556H CONTENTS Section Title Page
Page 5 and 6: EXT556H TABLES Table Title Page PAG
Page 7 and 8: 1 INTRODUCTION EXT556H 1.1 Scope an
Page 9 and 10: EXT556H 2 TECHNICAL DATA 2.1 Genera
Page 11 and 12: EXT556H 2.4 Purge gas specification
Page 13 and 14: EXT556H Parameter EXT556H Notes Max
Page 15 and 16: EXT556H PAGE 9 TECHNICAL DATA 1. In
Page 17 and 18: 3 INSTALLATION EXT556H 3.1 Unpack a
Page 19 and 20: EXT556H 3.3.1 The inlet screen (sup
Page 21 and 22: EXT556H If the inlet flange of the
Page 23: EXT556H CAUTION If you vent the pum
Page 27 and 28: EXT556H 4 OPERATION WARNING PAGE 21
Page 29 and 30: EXT556H 5 MAINTENANCE WARNING PAGE
Page 31 and 32: EXT556H Symptom Check Action The EX
Page 33 and 34: EXT556H 6 STORAGE AND DISPOSAL 6.1
Page 35 and 36: EXT556H 7 SERVICE, SPARES AND ACCES
Page 37 and 38: EXT556H PAGE 31 SERVICE, SPARES AND
Page 39 and 40: EXT556H 7.4.6 FL20K foreline trap T

EXT556H turbo pump user manual

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