jcb JCB305, Service Manual

Page: 22 / 51

01 - Machine
06 - About this Manual
06 - Using the Manual
01 - 16 9813/6700-1 01 - 16
Table 3.
General Fault Category PIL Reference Heading
Engine does not start / stop 15-00-00
Engine (FF) (1)
33-30-00 Ignition Switch
18-21-00 Fuel Pump
Engine performance is not as ex-
pected
15-00-00
Engine (FF) (1)
18-00-30 Electronic Throttle Control System
(electronic F.I. engines)
18-00-40 Electro Hydraulic Throttle Control
System (mechanical F.I. engines)
30-12-00 Variable Displacement Pump
(FF) (1)
Hydraulic services do not operate 09-27-01 Controls Isolation
Hydraulic services do not operate
as expected
30-00-15 Parallel Open Centre System
(FF) (1)
15-00-00 Engine (FF)
30-12-00 Variable Displacement Pump
(FF) (1)
30-50-03 MRV (Main Relief Valve)
Some excavator hydraulic services
do not operate as expected
30-00-15 Parallel Open Centre System
(FF) (1)
09-27-09 Controls - Excavator Arm
30-50-00 Excavator Control Valve Block
30-50-06
ARV (Auxiliary Relief Valve) (FF) (1)
30-15-00
Cylinder Ram (FF) (1)
Slew service does not operate as
expected
30-00-15 Parallel Open Centre System
(FF) (1)
33-33-88 Console Switch - Slew Lock
30-39-00
Slew Motor (FF) (1)
Travel service does not operate as
expected
30-00-15 Parallel Open Centre System
(FF) (1)
27-00-06
Driveline - Travel (FF) (1)
27-38-00
Track Drive Motor (FF) (1)
(1) Contains specific diagnostics fault finding tables.
Remove and Install
Before removal of components or assemblies, clean
the applicable parts of the machine. After removal
cap open ports and hoses to prevent contamination.
Use new sealing elements such as gaskets and
O-rings. Do not install defective components or
assemblies. if necessary replace them with new
ones.
Dismantle and Assemble
Before dismantling an assembly clean it. After
dismantling, clean the individual components and
check them for wear and defects. If necessary
replace them with new ones. During assembly use
new sealing elements such as gaskets and O-rings.
Torque Tightening
Use the torque tightening values contained in
the individual procedures (Remove and Install,
Disassemble and Assemble etc.). If no values are
specified, use the standard torque tightening values.
Refer to Fasteners and Fixings, Screws, Bolts, Nuts,
Technical data (PIL 72-00). Always use the correct
grade of fastener,