Section 1 - General Information
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9803-6530
1 - 1
Introduction
About this Publication
This publication is designed for the benefit of JCB
Distributor Service Engineers who are receiving, or have
received, training by JCB Technical Training Department.
These personnel should have a sound knowledge of
workshop practice, safety procedures, and general
techniques associated with the maintenance and repair of
hydraulic earthmoving equipment.
Renewal of oil seals, gaskets, etc., and any component
showing obvious signs of wear or damage is expected as
a matter of course. It is expected that components will be
cleaned and lubricated where appropriate, and that any
opened hose or pipe connections will be blanked to
prevent excessive loss of hydraulic fluid and ingress of
dirt. Finally, please remember above all else SAFETY
MUST COME FIRST!
The manual is compiled in sections, the first three are
numbered and contain information as follows:
1
General Information - includes torque settings and
service tools.
2
Care & Safety - includes warnings and cautions
pertinent to aspects of workshop procedures etc.
3
Routine Maintenance - includes service schedules
and recommended lubricants for all the machine.
The remaining sections are alphabetically coded and deal
with Dismantling, Overhaul etc. of specific components,
for example:
The page numbering in each alphabetically coded section
is not continuous. This allows for the insertion of new
items in later issues of the manual.
Section contents, technical data, circuit descriptions,
operation descriptions etc. are inserted at the beginning
of each alphabetically coded section.
All sections are listed on the front cover; tabbed divider
cards align directly with individual sections on the front
cover for rapid reference.
Where a torque setting is given as a single figure it may be
varied by plus or minus 3%. Torque figures indicated are
for dry threads, hence for lubricated threads may be
reduced by one third.
'Left Hand' and 'Right Hand' are as viewed from the rear
of the machine facing forwards.
A
Attachments
B
Body & Framework...etc.
This Service Manual covers the following machines:
JZ140
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