Danfoss APP 11-13 Piston Pump with Integrated User Guide

Danfoss APP 11-13 Piston Pump with Integrated

USER GUIDE

APP pumps
APP 11-13 and APP 16-22
Disassembling and assembling

1. Introduction

Tools provided with toolset 180B4222:

• 10 mm combination wrench
• 13 mm combination wrench
• 6 mm allen key
• Adjustable pin wrench
• Stop for retainer plate
• Press bush for valve plate
• Extractor
• M8x20 mm allen screw
• Press bush (Plastic)
• M8 mm eye bolt
• M8 mm nut
• M8 x 70 mm screw

Place the pump on a pallet or other stable surface above the ground. Ensure that the pump cannot 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 minimum 100 mm.

For a better understanding of the pump, please see the exploded view on page 18, 19 and 20.

WARNING : Do not reuse disassembled O-rings or shaft seal as they might be damaged. Always use new O-rings.

Important: It is essential that the pump is serviced in conditions of absolute cleanliness.

2. Disassembling the pump

3. Assembling the pump

WARNING : Do not use silicone when assembling the pump. Do not reuse disassembled O-rings; they might be damaged. Always use new O-rings.

Note : Place the pump on a pallet or other stable surface above the ground. Ensure that the pump cannot 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 minimum 50 mm.

Important : It is essential that the pump is serviced in conditions of absolute cleanliness. All parts must be absolute clean before mounting.

32. Tighten the bolts with a torque according to exploded view.

4. Disassembling and assembling of the swash plate

WARNING : Make sure that the surface on the swash plate does not get any marks.

5. Mount the assembled part on the pump.
(Remember to lubricate the O-ring).

5. Disassembling and assembling of cylinder barrel and valve plate

6. Disassembling and assembling of the flush valve

3. Put a little amount of grease on the thread on the plug. Screw it into the port flange. Tighten with a torque according to exploded viewv.

7. Changing pistons

Tools needed are:

• 13 mm combination wrench
• 6 mm allen key

Service kit see parts list 521B0941

Note: It is essential that the pump is serviced in conditions of absolute cleanliness.

8. Assembling

Important : It is essential that the pump is serviced in conditions of absolute cleanliness.

All parts must be absolute clean before mounting

9. When should the pistons be replaced?

This section provides guides on how to deter-mine whether the pistons of APP 11-13 and 16-22 are worn and should be replaced.

Note : If the pistons break down, the pump will suffer a disastrous breakdown.

In case of doubt – the pistons must be replaced. If any worn pistons are found, all pistons must be replaced.

The pictures below are meant as guideline for evaluating the wear of the sliding surface.W

10. Exploded view APP 11-13

11. Exploded view APP 16-19

12. Exploded view APP 22

Specifications

• Product Name: APP pumps APP 11-13 and APP 16-22
• Model Numbers: APP 11-13, APP 16-22
• Toolset: 180B4222
• Manual Version: DKCFN.PI.013.V3.02

Danfoss A/S
High Pressure Pumps DK-6430 Nordborg Denmark

© Danfoss | DCS (im) | 2017.06

180R9228 | 521B1181 | DKCFN.PI.013.V3.02 | 24

FAQ

Q: Can I reuse O-rings and shaft seals after disassembly?

A: No, it is crucial to always use new O-rings and seals to prevent damage or leaks.

Q: What tools are included in toolset 180B4222?

A: The toolset includes tools necessary for disassembling and assembling the APP pumps APP 11-13 and APP 16-22 as per the manual instructions.

References

• High-pressure pumps by Danfoss, world leading manufacturer | Danfoss

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