Maintenance - Haskel OM-LP-800F Betriebs- Und Wartungsanleitungen

8" Drive Liquid Pumps • OM-LP-800F
3.3.1 DUAL MUFFLERS
For minimum noise level, these may be remotely located. If exhaust is to be combined or restricted for
any reason, spool balancing modification Kit No. 51875 is recommended.
3.3.2 PILOT VENT
The pilot system vents a small amount of pilot air (or gas) once per cycle from the 1/8" NPT tap in the flow
fitting end cap. This vent should operate unobstructed. It may also be piped to a remote location if the
pilot gas is hazardous.
3.4 Controls
For general usage the optional standard air controls accessory package includes a filter, an air pressure
regulator with a gauge, and a manual valve for shutoff and speed control. Pumping rates shown in the
current catalog are based on the use of a regulator with a flow capacity equivalent to 3/4" pipe size. A
number of other control options are available to suit specific applications. Among these are: Automatic
start/stop of the drive - sensing liquid output and/or liquid inlet pressures; high pressure safety relief
protection; cycle counting, cycle rate control, etc.
Consult current catalogs, authorized distributors or the factory.
3.5 Liquid System
Refer to Figure 1 and to the detailed drawings enclosed covering the specific model. The drawing will
provide inlet and outlet port detail and location. When tightening connecting piping, hold the port fitting
securely with a backup wrench. Be certain that the connecting lines and fittings are of the proper design
and safety factor for pressure maximums.
NOTE: Also see paragraph 2.3 on liquid supply cleanliness.
4. Operation and Safety Considerations
NOTE: Before operation be sure the liquid supply has been turned on and is ample.
4.1 Starting the Drive
Turn on the drive air (or gas) gradually. The pump will automatically start to cycle with the application of
approximately 25 psi to the inlet and pilot.
NOTE: On initial start, or if unit has been idle for an extended period of time, the starting drive pressure
may have to be somewhat higher.
4.2 Priming - Pumping - Stalling
Loosen an outlet connection enabling air to escape until liquid appears, then tighten.
Observe the increase in output pressure with a conveniently located gauge rated for the maximum
system pressure.
Maximum output pressure can be automatically controlled by a Haskel air pilot pressure switch or similar
device backed up by a safety relief valve. (Refer to current catalogs for complete details.) In some
applications, the unit may also be allowed to simply pump up to its maximum pressure and stall - provided
that ample strength allowance for outlet system piping and valves has been included.
Leaving the drive and liquid sections pressurized for extended periods is not detrimental to the unit but
may be inadvisable for safety considerations depending on the installation.

5. Maintenance

5.1 General
WARNING: Use any cleaning solvent in a well ventilated area. Avoid excessive contact with skin. Keep
away from extreme heat and open flame.
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