jcb ROBOT 150, Руководство по обслуживанию

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9 - 3
Start-Up Procedure
The following start-up procedure should always be followed
when starting up a new installation or when restarting an
installation in which either a pump or motor has been
removed from the system.
Note: The illustration shows an early pump but although later
pumps are visually different the same procedure applies.
Note: If a new or rebuilt pump is being fitted always refill the
pump with filtered oil prior to start up. Use the correct oil (see
page 3/1 - 1).
! !
WARNING
The start-up procedure requires the machine to be
disabled (wheels raised off the ground, work function
disconnected, etc.) while the procedure is carried out.
HYD 8-1
Place the machine safely onto blocks, so that all four wheels
are clear of the ground. Ensure that the machine is stable.
! !
WARNING
Hydraulic Pressure
It is not possible to vent all residual pressure. Loosen the
connection one full turn and allow the pressure to
dissipate. Keep face and hands well clear of pressurised
hydraulic oil and wear protective glasses.
HYD 4-3
! !
WARNING
Hydraulic Fluid
Fine jets of hydraulic fluid at high pressure can penetrate
the skin. Do not use your fingers to check for hydraulic
fluid leaks. Do not put your face close to suspected
leaks. Hold a piece of cardboard close to suspected
leaks and then inspect the cardboard for signs of
hydraulic fluid. If hydraulic fluid penetrates your skin, get
medical help immediately.
INT-3-1-10/1
Fill the hydraulic tank with the correct fluid (see page 3/1 - 1),
via a 10 micron filter (no by-pass).
Check that the pump inlet line from the hydraulic filter to the
pump unit is filled with fluid, by slackening the hose
connection at the auxiliary pump.
Bleed air from the pump casing by slackening hose
connections at
A until oil flows freely then retighten the
connections.
Install a 0 - 35 bar (0 - 500 lb/in
2
, 0 - 35 kg/cm
2
) pressure
gauge in the pressure test point under the hydraulic filter.
Remove the ESOS fuse to prevent the engine from starting.
With the Drive Control Lever (in the cab) at Neutral, 'jog' the
engine using the starter. The pressure gauge should show a
small rise in pressure as the engine turns. If so, replace the
ESOS fuse and operate the starter whilst slowly increasing
the throttle lever setting until the engine starts and runs at the
lowest possible speed.
As air leaves the system, the charge pressure (as indicated
on the gauge) should rise to a minimum of 7 bar (100 lb/in
2
).
If the charge pressure is incorrect, shut-down and determine
the cause.
Once the correct charge pressure has been established,
operate the drive system 10 times in all directions with the
engine at idle then slowly increase the engine speed whilst
continuing to operate the system. Finally operate the system
in all directions several times with the engine running at
maximum speed.
Stop the engine and remove the gauge. Check the system
for leaks and top up the fluid as necessary.
Section E
Hydraulics
9803/8500
Section E
9 - 3
Issue 3*
Pumps
B168031
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A