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Maintenance
SP 500 / 750-15 / 750-18 / 1000 / 1250 Operation Manual
Removing safety devices
Sometimes you will have to remove a safety guard (Fig-
ure 1) or another safety device to perform maintenance.
For these situations, you must take extra care to ensure
your own safety and that of your co-workers. If you have
to put your hands, feet, or any other body part into a
part of the machine that would normally be guarded, be
sure use an approved “Lock Out—Tag Out” procedure.
Waterbox Cover
Figure 1
Example safety guard - waterbox cover
Lock Out - Tag Out procedure
Schwing includes approved warning devices with all
new concrete pumps and recommends the following
procedure prior to performing any maintenance in an
area of the unit that would normally be guarded:
Stop the diesel engine.
• Remove the key from the Operator Control Panel,
and put it in your pocket.
• Put the static cling “DO NOT OPERATE” label
next to the Operator Control Panel.
• Perform the needed service on the unit.
• Remove the labels, and reinstall the key
Store the label in the document holder for future use.
Do not operate.
Men working on
equipment.
30332964 A
No operar.
Personal
trabajando en
el equipo.
CUIDADO
WARNING
Before restarting the machine after performing mainte-
nance, be sure to put away all tools, parts, and sup-
plies, and clear the area of personnel.
Before starting the unit at any time, yell “Clear!” and
allow enough time for response before proceeding.
Replacing the hydraulic pump
It is highly recommended prior to the installation of any
model/manufacture of hydraulic pump(s) that the drive
spline be lubricated with a special pre-assembly grease
(Figure 2). Schwing recommends Optimoly Paste White
T to add extended life to the spline and related parts.
Optimoly Paste White T is available in cartridge or aero-
sol form, and can also be used in other pre-assembly
work.
Typical Hydraulic Pump Spline
Figure 2
Hydraulic pump spline
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