jcb 3CX Service Manual page 3

Introduction Introduction
This publication is designed for the benefit of JCB Distributor Service Engineers who are receiving, or have received, training This publication is designed for the benefit of JCB Distributor Service Engineers who are receiving, or have received, training
by JCB Technical by JCB Technical Training Department. Training Department.
These personnel should have a sound knowledge of These personnel should have a sound knowledge of workshop practice, safety procedures
with the maintenance and repair 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 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 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 connections will be blanked to prevent excessive loss of hydraulic fluid and ingress of dirt. Finally, please remember above all
else else SAFETY MUST COME FIRST! SAFETY MUST COME FIRST!
The manual is compiled in The manual is compiled in sections, the first three are
1 1 = =
2 2 = =
3 3 = =
machine. machine.
The remaining sections are alphabetically coded and deal with Dismantling, Overhaul etc. of specific components, for example: The remaining sections are alphabetically coded and deal with
A A = =
B B = =
The page numbering in each alphabetically coded section is not continuous. This allows for the insertion of new items in later 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. issues of the manual.
Section contents, technical data, circuit descriptions, operation descriptions etc are inserted at the beginning of each Section contents, technical data, circuit descriptions, operation descriptions etc are inserted at the beginning of each
alphabetically coded section. alphabetically coded section.
All sections are listed on the front cover; tabbed divider cards align directly with individua All sections are listed on the front cover; tabbed divider cards align directly with individual sections on the front cover for rapid
reference. 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 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 threads, hence for lubricated threads may be reduced by one third.
With the exception of slewing operations 'Left Hand' and 'Right Hand' are as viewed from the rear of the machine facing With the exception of slewing operations 'Left Hand' and 'Right Hand' are as viewed from the rear of the machine facing
forwards. forwards.
* *
Throughout this manual abbreviations are used to identify various machine types. The abbreviations and their full explanation Throughout this manual abbreviations are used to identify various machine types. The abbreviations and their full explanation
are as follows: are as follows:
AWS AWS - - All Wheel Steer All Wheel Steer
2 2 W W S S - - 2 2 W W h h e e e e l l S S t t e e e e r r
2 2 W W D D - - 2 2 W W h h e e e e l l D D r r i i v v e e
4 4 W W D D - - 4 4 W W h h e e e e l l D D r r i i v v e e
* *
The contents page at the beginning of each section will clearly identify using parenthesis () when a procedure/description is The contents page at the beginning of each section will clearly identify using parenthesis () when a procedure/description is
pertinent to a particular machine, for pertinent to a particular machine, for example:
Loader Arm Safety Strut (AWS Machines) Loader Arm Safety Strut (AWS Machines)
- Fitting and Removing - Fitting and Removing
Loader Arm Safety Strut (2WS Machines) Loader Arm Safety Strut (2WS Machines)
- Fitting and Removing - Fitting and Removing
9 9 8 8 0 0 3 3 / / 3 3 2 2 6 6 0 0
of hydraulic earthmoving equipment.
sections, the first three are numbered and contain information as follows:
General Information - includes torque settings and service tools. General Information - includes torque settings and service tools.
Care & Safety - includes warnings and Care & Safety - includes warnings and cautions pertinent to aspects of workshop procedures etc.
Routine Maintenance Routine Maintenance - includes service schedules and recommended lubricants for all the
Attachments Attachments
Body & Framework Body & Framework ...etc. ...etc.
reduced by one third.
example:
workshop practice, safety procedures, and general
numbered and contain information as follows:
cautions pertinent to aspects of workshop procedures etc.
- includes service schedules and recommended lubricants for all the
Dismantling, Overhaul etc. of specific components, for example:
, and general techniques associated techniques associated
l sections on the front cover for rapid
I I s s s s u u e e 2 2 * *