Danfoss APP 53-86, APP S 53-86, APP S 674 Service guide

Service guide

Changing shaft APP / APP S / APP S 674 53-86

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Service guide | Changing shaft APP / APP S / APP S 674 53-86

Table of Contents

1. Introduction

Contents

1. Introduction ....................................................................................................................................................................... 2

2. Disassembling shaft and cylinder barrel ................................................................................................................. 3

3. Assembling shaft and cylinder barrel ....................................................................................................................... 4

4. Exploded view ................................................................................................................................................................... 7

This document covers the instructions for changing shaft on the rotor of the axial piston pumps APP / APP S / APP S 674 53-86. The shaft kit includes a tool adapter that must be used with the standard tool kit.

Important: Place the pump horizontally on a pallet or other stable surface above the ground. Ensure that the pump cannot roll.

For a better understanding of the pump, please see the exploded view in section 4.

Tools provided with toolset 180Z0665:

• 1 x cone bushing extractor

• 1 x M8 x 140 screw

• 3 x M8 x 70 screws with nuts

• 3 x valve plate ﬁxation

• 2 x M6 x 65

• 2 x tool washer

• 1 x M16 pin and nut

• 1 x ø30/17 x 3 washer

• 1 x shaft seal press bush tool

• 1 x bracket

• 1 x 8 mm Allen key

• 1 x 6 mm Allen key

• 1 x M8 x 40 with nut

• 2 x combination wrench 13mm

• 1 x combination wrench 24 mm

• 1 x combination wrench 30 mm

• 1 x 24 mm socket (½”)

• 1 x torque wrench (½”)

• 1 x valve plate tool

• 2 x screw drivers, 5.5 x 1mm

• 1 x NV24 ﬂush valve tool

• 2 x M8 x 16 bolts

• 1 x valve plate mount

180R9404 | 521B1471 | DKCFN.PI.013.1J.02

Service guide | Changing shaft APP / APP S / APP S 674 53-86

2. Disassembling shaft and cylinder barrel

1. Use the Service guide 180R9376 for disassembling the pump. When the pump has been disassembled, use this Service guide 180R9404 in order to disassemble the shaft and the cylinder barrel.

2. Place the shaft, with cylinder barrel on a surface, that will not damage or scratch the bearing surfaces.

4. Alternatively use the clutch to protect the shaft.

3. Loosen the cone connection by hitting the shaft in radial direction with a soft hammer. If the shaft has to be reused, take care not to damage the shaft.

5. The shaft can now be pulled out of the barrel.

180R9404 | 521B1471 | DKCFN.PI.013.1J.02 | 3

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