Graco RMLS-5 Инструкция по эксплуатации онлайн
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Graco RMLS-5 Инструкция по эксплуатации онлайн

Graco RMLS-5 Инструкция по эксплуатации онлайн
RMLS Style for Cam Roller Drive
EMLS Style for Eccentric Drive
DESCRIPTION
MLS Mechanical Lube Pumps are designed for automatic
lubrication of machinery where machine motion can be used
as the power source for the pump. The mechanical action is
transmitted directly to the pump piston, combining compactness
and simplicity. A small adjustable shot of lubricant is discharged
on each stroke of the pump. Actuation rate should be limited to 50
strokes per minute for oil and 25 strokes per minute for grease. A
mechanical force of about 75 lbs on the roller will develop 2000
psi lube pressure. Pumps will easily develop 3000 psi if required.
All MLS Pumps are equipped with a high pressure relief assembly.
Its replaceable rupture disc protects the pump and automatically
signals blockage (high pressure) in the system, should it occur.
Pumps are equipped with blow-out discs, Part No. 557435 (509-
294-000), 2050 psi). If higher or lower disc bursting pressure
is required, see Bulletin L15401 for part numbers. If desired, a
pressure gauge (sold separately) can be teed into the main outlet
(See Bulletin L15326). Also available is a high pressure blow-out
switch, Part No. 56438 (511-573-000), which can be used to
actuate a fault light or horn.
RMLS Pumps for Roller Drive
RMLS Pumps are equipped with a cam roller for cam or stop
actuation. Two sizes are available: the RMLS-5 has an output from
0.005 to 0.012 cu. in. per stroke and the RMLS-50 output ranges
from 0.020 to 0.050 cu. in. per stroke.
The stroke of the pump piston (see table in specifications) is
adjusted by varying the distance between the pump and the stop,
cam surface or trip mechanism. The tripping mechanism should
be designed with a positive lock to
prevent damage due to overtravel
of the pump piston. The slope of
the engaging cam surface should
not exceed 15 degrees.
EMLS-5 Pump for
Eccentric Drive
The EMLS-5 Pump is furnished
with a drive arm with adjustable
clevis position for powering the
pump via a connecting rod from an eccentric pin in the end of a
rotating shaft or other back-and-forth movement. Pump output
can be adjusted from 0.005 to 0.012 cu. in. per stroke.
The stroke of the pump piston (see Figure 1 and table below) is
adjusted by varying the position of the clevis on the drive arm.
So as not to exceed piston stroke limitations, the lever arm must
not be driven more than 20° or less than 10°. After determining
the exact range, attachment of permanent stops to lever arm is
suggested to prevent settings outside allowable range.
Oil reservoir assemblies are available in 5, 6, 12, 20, 24 and 40
pint sizes. Grease reservoirs have a spring-loaded follower and
are available with either metal or plastic reservoir cylinders with
capacities of 5, 6, 12 or 20 lb. Oil reservoirs of clear plastic have
a top fill snap lid and cone filter screen. A low level switch may be
ordered for any reservoir. (See Bulletin 12000 for reservoirs and
options.)
INSTALLATION & OPERATING INSTRUCTIONS
Mount pumps with their lube inlet on the top, side or bottom. Be
sure that air is purged from reservoir-to-pump line. On start-
up and after repairs, bleeding air from the pump lube chamber
is accomplished by loosening the test or air cock (item 6 on
drawings) and operating pump by hand. (Be sure to retighten
cock.)
The piston sleeve o-rings must provide a good seal. Bypass can
produce a leak at drive end of pump and reduce efficiency.
Oil reservoirs must be mounted above the pump inlet. (Spring
loaded grease reservoirs may be mounted slightly below the
pump, but only if necessary.) Grease reservoir-to-pump lines
should be 1/2” OD or 5/8” OD tubing, two feet or less in length,
with as few bends as possible. 3/8” OD tubing is satisfactory for
oil reservoir-to-pump connections.
Figure 1.
EMLS-5 Adjustment
MLS Series Mechanical Pumps

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