New Holland L225, L325, L425, L445 SkidSteer Service Manual

Table of Content (Service Manual)

SKID-STEER LOADER OPERATION …………………………………… 8
SECTION 1
HYDROSTATIC TRANSMISSION REMOVAL …………………………. 11
SECTION 2
HYDROSTATIC TRANSMISSION PUMPS ……………………………. 21
SECTION 3
HYDROSTATIC MOTORS …………………………………………. 31
SECTION 4
GEAR PUMP ……………………………………………………. 36
SECTION 5
START-UP PROCEDURE AFTER TRANSMISSION OR
PUMP OVERHAUL …………………………………………….. 41
SECTION 6
STEERING CONTROL ADJUSTMENTS ……………………………… 44
SECTION 7
CHAIN COUPLER OR DRIVE SHAFT REMOVAL
AND INSTALLATION …………………………………………… 49
SECTION 8
CONTROL VALVE ……………………………………………….. 54
SECTION 9
BOOM AND BUCKET CYLINDERS …………………………………. 57
SECTION 10
FINAL DRIVE: COMPLETE DISASSEMBLY AND REASSEMBLY …………. 62
SECTION 11
ELECTRICAL SYSTEM …………………………………………… 85
SECTION 12
TROUBLE SHOOTING ……………………………………………. 90
SMALL FRAME LOADER ………………………………………….. 91
TRANSMISSION ………………………………………………… 95
SEAT ACTIVATED BOOM LOCKOUT
STYLE 1 ……………………………………………………….. 97
STYLE 2 ………………………………………………………. 100
SECTION 13
DEUTZ ENGINE ………………………………………………… 101
SPECIFICATIONS
L-225 …………………………………………………………. 103
L-325 …………………………………………………………. 104
L-425 …………………………………………………………. 105
L-445 …………………………………………………………. 106
LOADER REPAIR OPERATIONS ……………………………………. 112
INSTALLATION OF ADJUSTABLE FITTINGS IN
STRAIGHT THREAD 0-RING BOSSES …………………………….. 114
STANDARD TORQUE DATA FOR HYDRAULIC
TUBES AND FITTINGS ………………………………………….. 115
BOLT TORQUE CHART …………………………………………… 116
MINIMUM HARDWARE TIGHTENING TORQUES …………………………. 117
INDEX ………………………………………………………………… 118

The Manual Preface

This manual provides in condensed form, service and maintenance information which will serve to guide a serviceman when repairing or rebuilding Sperry model loaders in the shop and to be of help to him in diagnosing and correcting service difficulties in the field.

Sections of the Manual

The Manual is into main groups and subgroups, and covers any previous version of the machine. Any additions or modifications which can happen at a later date are not describe in this manual. The required information can easily be found by referring to the table of contents. For reasons of clarity, some of the illustrations are present in simplified form. Differences from the actual version of this manual are therefore possible if this adds to the clarity of the information.

Repair and Parts

Carry out any necessary repair work as soon as possible. This reduces repair costs and increases the availability While doing any work on the loader, always observe the instructions given in the manual. Extensive works not described in this will gladly be executed for you by your dealer. Always use original spare parts only.