Page 4
Form 403122
WIRING INSTRUCTIONS
Refer to following
instructions when
wiring Model 85530, Cycle Timer -
P/N 249605 and Solenoid Valves -
SV1 and SV2. See Figure 3.
Model 85530:
Cut 24 VDC pin on power supply
board.
Connect battery positive voltage at
terminal 1 on Terminal Strip A
(terminal 7 on terminal strip A is
internally connected to terminal 1) and
at terminal 23 on Terminal Strip B.
Connect battery negative voltage at
terminal 2 on Terminal Strip A
(terminal 9 and 12 are internally
connected to terminal 2) and at
terminal 24 on Terminal Strip B.
Cycle Timer, SV1 and SV2:
Replace SV2 coil with Timer & Coil
Assembly 249605.
Connect a wire from Model 85530
Terminal Strip A terminal number 8 to
the
brown wire
from the cycle timer
and one of the wires coming from
SV1.
Note: Green wire from cycle timer
not used.
Connect a wire from Model 85530
Terminal Strip A terminal number 9 to
the
white wire
from the cycle timer
and the other wire coming from SV1.
CYCLE TIMER
ADJUSTMENT
Cycle Timer is factory set at 1 second
on and 1 second off for 30 cycles/
minute. If adjustment is necessary
refer to Figure 4 and the following
procedure.
The one adjustment screw adjusts
both the ON time and OFF time
equally. The adjustment range is from
.5 seconds (60 cycles/minute) to 5
seconds (6 cycles/minute).
©
G. With the vent valve closed, the pump
continues to cycle until maximum
pressure is achieved and the
The adjustment screw allows 15 turns
of adjustment over the timing range.
The adjustment screw should be
turned 20 turns counter-clockwise to
insure you are starting at minimum.
Note: You can not adjust below
minimum - additional turns counter-
clockwise have no effect.
E. After the system pressure has been
reduced, it passes on to SV2 which
controls the direction of the hydraulic
cylinder which operates the grease
pump.
F. The 24 VDC signal is also sent to the
cycle timer located at SV2. The cycle
timer will send a pulsing signal, 1
second on and 1 second off, to SV2.
SV2 directs the hydraulic fluid to the
pump at 30 cycles/minute.
injectors have metered grease to the
bearings. In most grease systems
this is 2500 p.s.i.
H. When the maximum system
pressure is reached, the pressure
switch closes.
I. The closed pressure switch signals
the controller to stop the pumping
cycle.
J. At this time the controller terminates
the signals to SV1 and SV2.
K. As SV2 is deenergized, the pump
stops cycling.
L. As SV1 is deenergized, the hydraulic
fluid stops flowing to the pressure
reducing valve and the vent valve.
M. As the vent valve is deenergized it
opens and allows the grease
pressure to drop to zero so the
injectors can recharge for their next
output cycle.
N. The system is now at rest, ready for
another lube cycle and the sequence
repeats itself.
Controller with pressure switch and
safety valve must be used in the lube
system if cylinder pressure exceeds
220 p.s.i.! Failure to use these
monitoring and safety devices may
result in damage to system
components and personal inury!
