ST-70 — PARTS & OPERATION MANUAL — REV. #4 (05/29/07) — PAGE 25
D. Push the Hopper Remixer Control lever
upward (Figure
18) and observe that the blades (Figure 20) inside the
hopper are turning in a counter-clockwise direction
(reverse).
14. OPTIONAL RADIO REMOTE CONTROL
The MAYCO ST-70 Concrete Pump has a remote control feature
that allows the pump to be remotely controlled. If desired, the
pump can be operated via a receiver/transmitter method (Figure
21) or a hardwire method, which utilizes a 25-ft. extension cable.
The manual remote cord (Figure 22) should be installed under
the main control box. Contact your MAYCO representative for
further information.
C. Push the Hopper Remixer Control lever
downward (Figure
19) and observe that the blades (Figure 20) inside the
hopper are turning in a clockwise direction (forward).
Figure 20.
Hopper Remixer
Blades (Rotation)
FORWARD
REVERSE
SHAFT ROTATION
BLADES
(CCW)
(CW)
INITIAL START-UP PROCEDURE
Figure 21.
Handheld Receiver/
Transmitter
REMTRON
REMTRON
ON
ON
OFF
OFF
A
B
HANDHELD
REMOTE CONTROL TRANSMITTER
REMOTE CONTROL TRANSMITTER
REMOTE CONTROL RECEIVER
REMOTE CONTROL RECEIVER
ANTENNA
INPUT
ANTENNA
INPUT
CONTROL SWITCHES
CONTROL SWITCHES
MOUNT ON MAYCO ST-45
FRAME BODY
MOUNT ON MAYCO ST-45
FRAME BODY
SIGNAL
CABLE
SIGNAL
CABLE
Figure 22.
Handheld Remote Cable Unit
HAND HELD
REMOTE UNIT
HAND HELD
REMOTE UNIT
CONTROL SWITCHES
CONTROL SWITCHES
25 FT. CABLE
25 FT. CABLE
15. CYLINDER LUBRICATION BOX
WARNING
Before checking lubricaton level, stop the
engine and remove the engine starter key. We
recommend using soluble type oil (water & oil
mixture). The oil level should be checked
everyday prior to pumping. The oil level should be maintained
at a height of 5 inches or about ´½ the concrete cylinder height.
Important Notice! During freezing temperature after pumping,
completely drain the water box and cover the hopper. Frozen
liquid will restrict the piston travel and cause severe damage to
the pump.
As the rubber piston cups naturally wear, fine cement particles
will accumulate in the box. Once the concrete paste reaches a
height of about ½ inch from the bottom. The box should be
drained and cleaned. To clean, remove the drain plug located
at the bottom of the box. Once the Box is drained, start the
engine and stroke the cylinder (keep hands out of box) ten to
fifteen times. While stroking, spray water inside of the box to
thoroughly clean out all contamination. When the box is clean,
replace drain plug, add new lubrication and install the top cover.
Any questions regarding the above mentioned procedure,
please c
ontact
the Mayco Service Department
.
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