User's Manual

5-1
42000Modu-Flo
®
System
R
OPERATION AND
SERVICE INSTRUCTIONS
Modu–Flo®
System
SECTION 5
LOW-LEVEL SWITCHES
5.4.1 General .......................................................... 5-4
5.4.2 Oil Tank and Reservoir 10-Watt
Low-Level Assembly Maintenance Tips ....... 5-4
5.4.3 Disassembly of Oil Tank and Reservoir
10-Watt Low-Level Assemblies .................... 5-4
5.4.4 Assembly of Oil Tank and Reservoir
10-Watt Low-Level Assemblies .................... 5-4
5.4.5 Oil Tank and Reservoir 10-Watt
Low-Level Assemblies Parts List ................. 5-4
5.5 GREASE RESERVOIR LOW-LEVEL ASSEMBLY
MAINTENANCE (OPTION L4) ................................... 5-5
5.5.1 General .......................................................... 5-5
5.5.2 Grease Reservoir Low-Level Assembly
Maintenance Tips .......................................... 5-5
5.5.3 Disassembly of Grease Reservoir
Low-Level Assembly ..................................... 5-5
5.5.4 Assembly of Grease Reservoir
Low-Level Assembly ..................................... 5-6
5.5.5 Grease Reservoir Low-Level Assembly
Parts List ....................................................... 5-6
5.1 DESCRIPTION
5.1.1 General. Several varieties of assemblies are
available to provide a signal when the lubricant level is low.
Low-level switch assemblies used on oil tanks or reservoirs
depend on floats that fall with the depletion of lubricant and
actuate contacts on the switch. Switch assemblies used on
grease reservoirs are actuated when a cable attached to the
grease follower is pulled away from the switch as the
follower reaches the low position. Switch assemblies used
in oil reservoirs and grease reservoirs are rated 15 amps.
Optional 10-watt assemblies are available for oil tanks and
reservoirs.
5.1.1.1 The low-level assemblies with a 15 amp rating are
often used to activate a warning device such as a light or
alarm. The optional 10-watt assemblies are used to provide
input to controllers which may be programmed to use the
input signal as desired.
5.1.1.2 Table 5-1 lists the low-level assemblies available
for use. Listings in the option column are used to identify the
assembly selected when a Modu-Flo system is ordered.
5.1 DESCRIPTION .......................................................... 5-1
5.1.1 General .......................................................... 5-1
5.2. MOUNTING INSTRUCTIONS ................................... 5-1
5.2.1 Oil Reservoirs and Tanks.............................. 5-1
5.2.2 Grease Cylinders .......................................... 5-1
5.3 OIL TANK AND RESERVOIR 15 AMP
LOW-LEVEL ASSEMBLY MAINTENANCE
(OPTIONS L1, L2 and L3) ......................................... 5-2
5.3.1 General .......................................................... 5-2
5.3.2 Oil Tanks and Reservoir 15 Amp
Low-Level Assembly Maintenance Tips ....... 5-2
5.3.3 Disassembly of Oil Tank and Reservoir
15 Amp Low-Level Assemblies .................... 5-2
5.3.4 Assembly of Oil Tank and Reservoir
15 Amp Low-Level Assemblies .................... 5-2
5.3.5 Oil Tank and Reservoir 15 amp
Low-Level Assemblies Parts List ................. 5-3
5.4 OIL TANK RESERVOIR 10-WATT LOW-LEVEL
ASSEMBLY MAINTENANCE (OPTIONS L5, L6
AND L7)..................................................................... 5-4
The option used is designated by the entry in the ordering
code as shown below.
MPP - XXX - XXX - XX - XX -
XX - XX - XX - XXX - XX
Low-Level Option
5.2. MOUNTING INSTRUCTIONS
5.2.1 Oil Reservoirs and Tanks. To install any low-level
switch in a reservoir or tank requires the removal of the tank
cover or reservoir cap. All covers or caps are equipped with
a 1/4 inch NPT tapped hole. The low-level switch has an
adapter which threads into the hole. For complete instruc-
tions on mounting these units, refer to Paragraphs 5.3.4
and 5.4.4.
5.2.2 Grease Cylinders. The low-level switch for grease
cylinders consists of the switch itself mounted to a bracket
which is, in turn, attached to the top of the grease cylinder.
For complete instructions on mounting these units refer to
Paragraph 5.5.4.