Gradall 544B Operation Manual - Manual (Page 16)

S t o p p i n g t h e E n g i n e
Operate engine at idle speed for a few minutes
before turning it off.
This allows engine coolant and
lubricating oil to carry excessive heat away from
critical engine areas.
Do not “gun” engine before shut down; this
practice causes raw fuel to remove oil film from
cylinder walls and dilute lubricant in crankcase.
Allow engine to run at idle for a few minutes
to allow the turbo components to cool. Turn
key counterclockwise to stop position and
remove key from ignition switch before
leaving cab.
WARM UP & OPERATIONAL CHECKS
(To be performed at beginning of each work shift)
Complete all required maintenance before operating unit.
The safety, efficiency and service life of your unit will
be increased by performing the operational checks
listed below. Items preceded by an asterisk (*) are
optional and may not be furnished on your machine.
Check items during warm-up period.
Continued operation with hydraulic fluid
by-passing the filter (yellow flag
showing) can cause severe damage to
hydraulic system components.
14
Forward and reverse travel in all gears
“Inching” travel - should be smooth through full
pedal travel
Horn and back-up alarm
All boom and attachment functions - full stroke
in both directions
Hydraulic Filter Condition Indicator - observe
transmission torque converter temperature gage
after starting normal operation. When needle
has been in operating range for an hour or so,
stop handler in a safe area and set parking brake.
With engine running at full RPM, check hydrau-
lic filter condition indicator. When yellow flag
fills indicator window, filter is clogged and
hydraulic oil is bypassing filter. Filter must be
changed before reaching bypass condition
(change before yellow flag reaches midpoint of
window).
Heater, defroster and windshield wiper
Operating lights and rotating beacon
Low brake pressure light - should go out with
engine running above idle
Ammeter - should show low charging rate after
charging system has replaced starting drain
When engine warms to operating range, check
the following items:
Service brake and parking brake.
*1
*2.
3.
4.
5.
6.
7.
8.
9.
10.