Neuson 2503 3003 3503 3703 Compact Excavator Complete Workshop Service Repair Manual
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Service-Manual
Compact Excavator
Machine model 2503 - 3703
Edition 1.1
Language English
Itemn No. 1000081433
Copyright – 2005 Neuson Baumaschinen GmbH, Linz-Leonding
Printed in Austria
All rights reserved
No part of this publication may be reproduced, translated or used in any means - graphic, electranic or mechanical
including photocopying, recording, taping or information storage or retrieval systems - without prior permission in
writing from Neuson Baumaschinen GmbH.
Thecover features the machine with possible optional equipment.
Neuson Baumaschinen GmbH
Haidfeldstrasse 37
A-4060 Linz-Leonding
Dokument: SERV-HB 2503 - 3703
Order-Nr.: 1000081433
Edition: 1.1
Documentation
Description Order no.
Operation manual 1000081417
Service manual 1000081433
Spare parts list 1000015263 / 2503
1000015264 / 3003
1000142100 / 3503
1000142112 / 3703
TABLE OF CONTENT :
Chapter Page
O Table of content / Product history
A Technical data
1 Primary dimensions .......................................................... A2
2 Lift capacities .......................................................... A9
3 Hydraulic settings .......................................................... A15
4 Diesel engine settings .......................................................... A19
5 Tightening torques .......................................................... A22
B Maintenance
1 Maintenance schedule .......................................................... B2
2 Lubricants .......................................................... B6
3 Hydraulic system .......................................................... B8
4 Auxiliary hydraulic .......................................................... B15
5 Hydraulic pump .......................................................... B16
6 Hose burst protection valve .............................................. B16
7 Drive unit .......................................................... B17
8 Swivel unit .......................................................... B17
9 Hydraulic oil tank .......................................................... B18
10 Diesel engine .......................................................... B18
11 Cabin .......................................................... B20
12 Undercarriage .......................................................... B21
C Hydraulic
1 Hydraulic system .......................................................... C2
2 Component positions .......................................................... C5
3 Hydraulic pump .......................................................... C7
4 Pilot oil supply unit .......................................................... C12
5 Main valve block .......................................................... C17
6 Pilot control valves .......................................................... C33
7 Swivel unit .......................................................... C36
8 Drive unit .......................................................... C42
9 Swivel joint .......................................................... C52
10 Switch valves .......................................................... C55
11 Way valve (Vario) .......................................................... C58
12 Pressure limiting valve (Vario) ................................................. C59
13 Hydraulic oil tank .......................................................... C60
D Diesel engine
E Elektric
F Operation elements
G Attachment
Abbreviations:
AP ... Adjustment point
MP ... Measuring point
PPLV ... Primary - pressure limiting valve
SPLV ... Sekondary - pressure limiting valve
TT ... Tightening torque
Pb1 ... Port code at the hydraulic diagram
Edition January 2003, Copyright Neuson Baumaschinen
Neuson reserves changes.
Ing. Andreas Huemer ( Neuson Training ) Tel.: ++43 / 732 /90 5 90 - 0
Email.: andreas.huemer@neuson.com
P R O D U C T H I S T O R Y
This overall lists the main technical modifications of the excavator type
Neuson 2503 .
Step Excavator code Fabr.No.: Modification / Part group
Production start 2503 RD AB00001
(SNews 47/01) - Rear counterweight opening mechanism
AB00806 - Diode ignition lock (SNews53)
(SNews 50/01) - Relays dozer blade function
AC00307 - Lower windscreen seal modification
(SNews 61/01)
AC00351 - Fuel tank version plastic (SNews 70/02)
AC00901 - Swivel unit new (SNews 72/02)
Version 2503 AD AD00001 - Diesel engine Yanmar (SNews 73/02)
(SNews 72/02) - Joystick console short (IV)
(SNews 74/02) - Joystick console (IV) hardening cover
- Sticker design
- Wiring and instrument panel changed
- Diesel engine maintenance intervals
extension possible (SNews 71/02)
AD00029 - Fuel tank ventilation filter (SNews 70)
Neuson 3003 .
Step Excavator code Fabr.No.: Modification / Part group
Production start 3003 RD AB00001
(SNews 47/01) - Rear counterweight opening mechanism
AB00806 - Diode ignition lock (SNews53)
(SNews 50/01) - Relays dozer blade function
AC00307 - Lower windscreen seal modification
(SNews 61/01)
AC00351 - Fuel tank version plastic (SNews 70/02)
AC00901 - Swivel unit new (SNews 72/02)
Version 3003 AD AD00001 - Diesel engine Yanmar (SNews 73/02)
(SNews 72/02) - Joystick console short (IV)
(SNews 74/02) - Joystick console (IV) hardening cover
- Sticker design
- Wiring and instrument panel changed
- Diesel engine maintenance intervals
extension possible (SNews 71/02)
AD00029 - Fuel tank ventilation filter (SNews 70)
P R O D U C T H I S T O R Y
This overall lists the main technical modifications of the excavator type
Neuson 3503 .
Step Excavator code Fabr.No.: Modification / Part group
Production start 3503 RD AB00001
(SNews 47/01) - Rear counterweight opening mechanism
AB00806 - Diode ignition lock (SNews53)
(SNews 50/01) - Relays dozer blade function
AC00307 - Lower windscreen seal modification
(SNews 61/01)
AC00413 - Fuel tank version plastic (SNews 70/02)
AC00901 - Swivel unit new (SNews 72/02)
Version 3503 AD AD00001 - Diesel engine Yanmar (SNews 73/02)
- Hydraulic pump new
(SNews 72/02) - Joystick console short (IV)
(SNews 74/02) - Joystick console (IV) hardening cover
- Sticker design
- Wiring and instrument panel changed
- Diesel engine maintenance intervals
extension possible (SNews 71/02)
AD00029 - Fuel tank ventilation filter (SNews 70)
Neuson 3703 .
Step Excavator code Fabr.No.: Modification / Part group
Production start 3703 RD AB00001
(SNews 47/01) - Rear counterweight opening mechanism
AB00806 - Diode ignition lock (SNews53)
AB01031 - Release hose tilt cylinder (SNews 59/01)
(SNews 50/01) - Relays dozer blade function
AC00307 - Lower windscreen seal modification
(SNews 61/01)
AC00413 - Fuel tank version plastic (SNews 70/02)
AC00901 - Swivel unit new (SNews 72/02)
Version 3703 AD AD00001 - Diesel engine Yanmar (SNews 73/02)
- Hydraulic pump new (SNews 73/02)
(SNews 72/02) - Joystick console short (IV)
(SNews 74/02) - Joystick console (IV) hardening cover
- Sticker design
- Wiring and instrument panel changed
- Diesel engine maintenance intervals
extension possible (SNews 71/02)
AD00029 - Fuel tank ventilation filter (SNews 70)
Id.No.: 9707748
Edition: Jan 03
Page A1
Technical data SERVICE MANUAL
2 5 0 3 - 3 7 0 3
C H A P T E R A :
Technical data
( Neuson Service Manual 2503 - 3703 )
SERVICE MANUAL
2 5 0 3 - 3 7 0 3
Technical data
Id.No.: 9707748
Edition: Jan 03
Page A2
1. DIMENSIONS
Id.No.: 9707748
Edition: Jan 03
Page A3
Technical data SERVICE MANUAL
2 5 0 3 - 3 7 0 3
Tab.: Primary dimensions
SERVICE MANUAL
2 5 0 3 - 3 7 0 3
Technical data
Id.No.: 9707748
Edition: Jan 03
Page A4
Tab.: Primary dimensions Neuson 3503
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Print one or all pages of your manual
$41.99
Thank you for considering this comprehensive Workshop Service Repair Manual for the Neuson 2503, 3003, 3503, and 3703 Compact Excavators.
This manual is an invaluable resource, covering every service and repair procedure necessary for professional mechanics and DIY enthusiasts alike.
With easy-to-follow step-by-step instructions and detailed illustrations, this manual empowers you to save on repair costs by performing maintenance and repairs on your own.
Once downloaded, this manual is yours to keep. You have the flexibility to print specific pages, chapters, or the entire manual. Additionally, you can conveniently access it on your tablet or smartphone.
Models Covered:
- All Models/Engines/Trim/Transmissions Types Are Covered
Contents:
- This high-quality manual encompasses all repair procedures from A to Z, ensuring that every aspect of repair and service is comprehensively addressed.
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