OM4207 04/10 Automatic Lubrication System - Section 42
42-11
SYSTEM CHECK
To check system operation (not including timer), pro-
ceed as follows:
1. Start the engine.
2. Actuate the lube system test switch at the reser-
voir/pump assembly.
3. The motor and pump should operate until the sys-
tem attains 17 237 kPa (2500 psi).
4. Once the required pressure is achieved, turn the
pump motor off. The system should vent.
5. Check for pump, hose or injector damage. Check
for leakage with the system pressurized.
6. After checking the system, shut the engine off.
Lubrication Controller Check
Pressing the manual lube button on the enclosure
cover will initiate a lube event. (See Figure 42-9).
Lubrication Controller Operation
The time between lube events is determined by the set-
ting of the rotary switch and the dip switch. The rotary
switch selects the numeral setting, and the dip switch
selects the units in either minutes or hours.
Lubrication Controller Components
Mode switch (2, Figure 42-9) consists of four dip
switches. The first dip switch controls the maximum
amount of “on time”, either 30 seconds or 120 seconds.
The second dip switch controls the mode, either timer
mode or controller mode. When the switch is set to the
timer mode, the amount of time that the pump is on will
be determined by the setting of the dip switch - 30 sec-
onds or 120 seconds. When the switch is set to the
controller mode, a pressure switch must be installed in
the lube supply line. The pressure switch will detect
supply line pressure, and will reset the timer at a set
pressure. If the pump fails to reach the set pressure
within the dip switch set time, the controller will initiate
an alarm.
The third dip switch is for selecting the units for the “off
time”. This setting is to be used in conjunction with off
time switch (1). Hours or minutes may be selected.
The fourth dip switch is used to select “memory off” or
“memory on”. When the switch is set to “memory off”, a
lube cycle will occur each time power is turned on. The
lube cycle will start at the beginning of the on time set-
ting.
When the switch is set to “memory on”, the controller
will function as follows:
• When power is turned off between lube cycles,
the lube cycle will resume at the point of inter-
ruption after power is restored. In other words,
the controller will remember its position in the
cycle.
• When power is turned off during a cycle, the
controller will reset to the beginning of the lube
cycle after power is restored.
Off time switch (1) is used to select units of time. Possi-
ble time intervals are: 0.5, 1, 2, 4, 8, 15, 24 or 30. The
mode switch determines whether the off time units will
be minutes or hours.
Cover (3) contains three Light Emitting Diode (LED)
windows and a manual lube switch. The LED’s indicate
system operation and status. When power is on, a
green LED will illuminate. When the pump is on,
another green LED will illuminate. A red LED will illumi-
nate when an alarm condition occurs.
The manual lube switch, when depressed, will initiate a
lube cycle.
Lubrication Controller Adjustment
The lubrication controller is factory adjusted to the fol-
lowing switch settings:
Dip switch 1 . . . . . . . . . . . . . . . . . . . . . . . 120 seconds
Dip switch 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .timer
Dip switch 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . minutes
Dip switch 4 . . . . . . . . . . . . . . . . . . . . . . . . .memory off
Rotary Switch. . . . . . . . . . . . . . . . . . . . . . . . 15 minutes
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