Johnson Controls AS - Manual

4 IM-AS/02.00 GB (0412) Before carrying out any operation which requires to disassembly of the pump(inspection, cleaning, seal replacement, etc.), the following preliminary operations haveto be carried out: • Switch off engine tension and disinsert electric connection. • Close valves on suction and ...

5 IM-AS/02.00 GB (0412) 5.0 Description The pumps of series AS are centrifugal side channel self-priming with star-shaped impeller; theports are located on the longitudinal axe with the suction located on the front of the pumpcover. All models have threaded connections for fittings according to DIN ...

6 IM-AS/02.00 GB (0412) Fig. 1 NO YES 6.0 Non-permitted uses Do not use the pump with a suction pressure greater than the specified value (0.5 timesthe discharge head generated by the pump). The pump must always be used in an environment appropriate to the level of protectionof the motor. Always che...

7 IM-AS/02.00 GB (0412) 7.3 Electrical connection Make the electrical connection only after the hydraulic connection has been completed; set upthe motor control system in conformity with the technical standards and regulations in force(EN 60204-1): in particular a manual electric power switch must b...

8 IM-AS/02.00 GB (0412) • The pump must always work smoothly and without vibrations. • Do not operate without liquid and in any case avoid prolonged operation with thedischarge gate valve closed. • With series AS pumps never close discharge side completely. • Mechanical seal: check that there is no ...

11 IM-AS/02.00 GB (0412) 4. Isolate and depressurize flushing/quench system. 5. Close the inlet and discharge valves. 6. Drain and purge the pump casing and pipe work. 7. Clean the pump externally before disassembly. 11.4 Disassembly 11.4.1 Removal of pump casing and impeller – AS 40, 50, 60, 65 and...

13 IM-AS/02.00 GB (0412) 11.4.4 Bearing removal 1. Remove shroud adapter (43) (if assembled) by loosening the screws (45). 2. Unscrew the screws (27). 3. Remove the bearing cover (8). 4. Press out the shaft and bearing assembly from the bearing housing (5). 5. Unscrew the ring nut (17). Press out th...

14 IM-AS/02.00 GB (0412) 11.5.3.2 V execution 1. Press the radial seal (66) into the mechanical seal cover (65). 2. Fasten the stud bolt (68) on the pump casing (1). 3. Slide the mechanical seal cover (65) on the stud bolts (68) and tighten them. 4. Insert the stationary seal part into the pump casi...

16 IM-AS/02.00 GB (0412) 11.5.5 Pump cover and Impeller assembly – AS 42 and AS 52 See drawing 1. Fit the first impeller key (11) and push on the impeller (3) on the shaft (4). 2. Fit the O-ring in the pump casing (1) groove and assemble the inter-suction casing(34). 3. Fit the O-ring (36) in the in...

17 IM-AS/02.00 GB (0412) 12.0 Spare parts lists and sectional drawings 12.1 Spare part list AS 40, 50, 60-65, 80 Pos Qty Description Material 1 1 Casing, pump CF-3M / 1.4409 1 Q 1 Casing, pump Q-execution CF-3M / 1.4409 1 V 1 Casing, pump V-execution CF-3M / 1.4409 2 1 Cover, casing CF-3M / 1.4409 3...

25 IM-AS/02.00 GB (0412) 13.0 Dimensions and weights 13.1 AS 40-50-60-65-80 with shroud 1450 rpm Dimensions not binding – DN = DIN 11851 male threaded connection – exec. with standard IEC/EN motors 13.2 AS 40-50-60-65-80 without shroud 1450 rpm Dimensions not binding – DN = DIN 11851 male threaded c...

27 IM-AS/02.00 GB (0412) 14.0 Trouble shooting chart The pump does not prime • Air has entered the suction piping; check the seals on the fittings and tighten them sufficiently. • Suction pipe not submerged in liquid. • Clearances between impeller/cover and impeller/body have increased. Check and co...

28 IM-AS/02.00 GB (0412) 15.0 Disposal of the pump For disposing the pump please observe the following instructions: • Disconnect electrical and hydraulic connections according to technical rules and laws in force. • Disassemble all components of the pump for separate dismantling; wash the component...

Johnson Pump Industry Group National Sales Organisations AUSTRALIA Johnson Pump (Australia) Pty. Ltd. Tel. +61 (0)7 3899 9933 Fax +61 (0)7 3899 8574 BELGIUM Johnson Pump N.V./S.A. Tel. +32 (0)2 422 15 50 Fax +32 (0)2 422 15 59 DENMARK Johnson Pumper A/S Tel. +45 43 52 24 00 Fax +45 43 52 15 77 FINLA...