Operation
24
7/27/12
Operation Manual - SP 305
Before
you start the engine, fill the waterbox with
water, and grease the pivot yoke grease zerks and shaft
bushings.
Replace the waterbox cover before starting the engine,
and do not remove it when the engine is running.
Put a couple of shovelfuls of sand or dirt in the bottom
of the hopper, above the cleanout door. This will keep
concrete from filling up that area and setting.
Spray the back of the hopper and nearby areas with
form oil. This will greatly speed up the cleanout
process when you have finished pumping.
Talk to the hose handler and agree on hand signals.
Know the signals for starting, stopping, speeding up,
slowing down, and so on. The ACPA recommended
hand signals are shown in the
Safety Manual
.
The delivery system will have to be lubricated before
you can pump concrete through it. Many operators use
a sack of portland cement and water (mixed together in
a bucket to a creamy consistency) to lubricate the
delivery system. Other operators use specially designed
pipeline lubrication packets that are mixed with water
to lubricate the line (sometimes referred to as
pipe
snot
). If you don’t know where to get these packets in
your area, contact your local Schwing dealer.
Get your slurry mixing items ready, but don’t actually
mix the slurry until concrete is on the job.
If it’s cold outside, start the engine and run it at an idle
while you are waiting for the concrete to show up. This
will cycle the hydraulic oil and warm it up a bit. This
step is not necessary if it’s warm outside. (See the
items in the following section for engine starting tips.)
Starting the engine
Either the remote control cable or the dummy plug
must be plugged into the remote control cable
receptacle on the control panel.
The hopper grate
must be in the
down
position. Adjust the manual
throttle to about
1
/
4
to start. This allows the oil pressure
to build, which lubricates the cylinders. This is
especially important in cold weather.
• Turn the Pump Switches to the OFF position.
• Place Pump shift lever into the NEUTRAL
position.
• Make sure all Emergency Switches are in the RUN
positions.
• If using the optional radio (cordless) remote, the
engine won't start unless radio remote and receiver
are linked. Turn the radio on by using the following
sequence:
1. Turn the ignition key to the
ON
position which
supplies power to the receiver.
2. Engage the E-stop on the radio remote.
3. Press power button on radio remote, light will
flash.
4. Disengage E-stop on radio remote, light will be
solid.
• Wait 10 seconds before turning ignition key to
engage the starter.
• Start the engine by turning the switch to the
start
position. Release key when engine starts. After the
engine is running, the charging system and oil
pressure lamps should go off. If they don’t go off
within 5 or 6 seconds, stop the engine and find the
cause of the problem.
The engine can be destroyed by lack of oil pressure.
Don’t run the engine if the oil pressure light won’t go
out.
WARNING
Do not grease the pivot yoke while the
machine is stroking. Stop engine and
verify zero pressure before greasing.
W026.eps
Grszerk.eps
Grease Zerks
Figure 8
Pivot yoke
grease zerks
Shoveling.eps
Figure 9
Sand in the
cleanout door
opening at the
start of the day
helps cleanout
CAUTION
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