22
Operation Manual
and hung for space savings. A high pressure
pulsation damper may be benecial in some
cases. Short on/off cycles at high pressure will
create the largest spikes of pressure and re-
quire care to damp- en. Flow controls or other
means to slow the abrupt change of pressure
will smooth these pulsations.
Lubrication
The powerend is lubricated via 80W90 gear
oil in the sump of the housing. The journal
bearings, crossheads, and connecting rod
bushings are supplied oil via gravity from a
collection trough above the crossheads. The
powerend has a level requirement to ensure
oil lubricates the crank- shaft tapered roller
bearings and stays in contact with the crank-
shaft. Front to back level specication is 7°
and side to side level is 10°. Both a low oil level
shutdown and a high oil temperature shut-
down are available as options.
The powerend oil has a recommended maxi-
mum temperature of 190°F and can be com-
fortably run in most environments. Extremely
hot or cold envi- ronments (i.e. Middle East,
Canada) may require oil cooler or synthetic oil.
Contact Jetstream Engineering for assistance.
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