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Instruction 

Disassembling and assembling APP 21-43

7

180R9121 / 521B1018 / DKCFN.PI.013.A4.02  /  10.2013

8.   Place housing horizontally. Screw in the rest of 

the screws on port flange. Tighten screws to a 

torque of 30 ± 2 Nm.

10. Position port plate by using the two guide pins. 

 

Do not use force for this operation.

12.  Screw eye bolt in cylinder barrel.

14. Unscrew M5 eye bolt.

15.  Place the four springs and spring guide in 

cylinder barrel. Springs must be positioned in 

the holes.

13.   Make sure there is enough free space for 

the shaft beneath the housing. Gently lower 

cylinder barrel into housing.

 WARNING:

   If cylinder barrel is dropped or lowered too 

fast into housing, main bearing and shaft 

bearing might be damaged. Replacement can 

only be done at Danfoss, Nordborg.

9.   Place pump vertically. Place 10.5 mm guide pins 

in port flange.

11.  Ensure port plate is fitted tightly against the 

bottom.

  IMPORTANT:

   Lubricate port plate with clean filtered fresh 

water.

   If valve plate is disassembled from cylinder 

barrel please see page 11 before continuing.

Summary of Contents for APP 21-43

Page 1: ...ro solutions com ro solutions com Instruction APP pump instruction APP 21 43 MAKING MODERN LIVING POSSIBLE Instruction Disassembling and assembling APP 21 43...

Page 2: ...nnot roll It must be possible to place the pump vertically with the shaft pointing downwards This can be done between two pallets or between two boards on a pallet provided that the distance is minimu...

Page 3: ...bolts in screw holes in shaft seal flange to remove it 4 Mount the M8 allen screw from the tool set in the top of the shaft 3 Remove ceramic ring from flange by gently pushing it from the back of the...

Page 4: ...hand the pistons one by one Be careful not to scratch the pistons Tilt the retainer plate to horizontal position for easy removal of pistons if required WARNING Do not use any tools 9 Unscrew the rem...

Page 5: ...maining screws in port flange by using a 13 mm combination wrench 21 Carefully separate house and port flange Ensure that guide pin for the positioning house is not lost For further disassembling of f...

Page 6: ...housing aligning pin hole over guide pin 6 Gently press downwards Be careful not to squeeze O ring If O ring is damaged the pump will leak 7 Screw in at least two screws 4 Mount O ring 2 Place port fl...

Page 7: ...nder barrel Springs must be positioned in the holes 13 Make sure there is enough free space for the shaft beneath the housing Gently lower cylinder barrel into housing WARNING If cylinder barrel is dr...

Page 8: ...in mounting flange Turn each bolt one round at a time to ensure mounting flange is mounted as straight downwards as possible Be careful not to squeeze O ring 21 Remember to place the guide pin in the...

Page 9: ...rbon ring is pointing outwards 28 Press new ceramic ring into retainer ring by using plastic tool provided WARNING Ensure that the face with rubber seal is positioned against shoulder in shaft seal fl...

Page 10: ...wash plate Remove the mounting flange from the swash plate 3 Change the O ring on the mounting flange 5 Mount the assembled part on the pump 4 Mount the swash plate on the 2 guide pins Carefully by ha...

Page 11: ...d in tool set like on the picture Screw the bolt into the cylinder barrel Turn the nut slowly clockwise The valve plate must slide gently into the cylinder barrel Stop when the gap between cylinder ba...

Page 12: ...P 21 26 and APP 30 1 500 22 13 lbf ft 2 21 lbf ft 22 13 lbf ft 2 21 lbf ft 22 13 lbf ft 2 21 lbf ft 22 13 lbf ft 2 21 lbf ft 1 47 lbf ft 0 74 lbf ft 7 38 lbf ft 1 47 lbf ft 7 38 lbf ft 1 47 lbf ft 7 3...

Page 13: ...200 APP 38 1 500 APP 43 1 700 22 13 lbf ft 2 21 lbf ft 22 13 lbf ft 2 21 lbf ft 22 13 lbf ft 2 21 lbf ft 22 13 lbf ft 2 21 lbf ft 22 13 lbf ft 2 21 lbf ft 1 47 lbf ft 0 74 lbf ft 7 38 lbf ft 1 47 lbf...

Page 14: ...e right to alter its products without notice This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications a...

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