RAMVAC Bison 9 - Oil Change Procedure

Page 14 1061DOC Rev C
Effective date: 6-Mar-14
User Guide RAMVAC Bison
®
Oil Change
“ Change Oil” is displayed on the S2 Electrols every 2000 hours .
Procedure:
1. Drain Used Oil
· Place empty oil container (minimum 6 quarts) under oil drain tube
· Open oil drain valve. When oil stops draining, close valve.
· If you see water in the oil, contact your dealer or RAMVAC.
2. Check Oil Filter
· Unscrew oil lter and remove lter element.
· Normally your oil lter element will be clean. If dirty, contact your dealer or RAMVAC.
· Re-assemble oil lter. Hand tighten only.
3. Add Fresh Oil
· Remove oil ller cap.
· Add 5 quarts Mobil 1, 15w50. Check Oil Fill Level at sightglass and add or drain oil accordingly. (see pg. 10).
· Use only recommended oil, available locally and also available from RAMVAC.
· Securely install oil ll cap.
· Check oil drip rate. See “Check Oil Drip Rate”
· Dispose of used oil at a gas station or lubricant recycling station.
4. Reset “Change Oil”
· From “Change Oil” screen press and hold the reset button for 10 seconds.
Check Oil Drip Rate
Check the drip rate at the “Dripper Site Glass” after the rst week of operation, after every oil change, and every time
the 1000 hour Filter Maintenance displays.
Drip rate should be 1 to 3 drops per minute at each “Dripper” when the Bison vacuum unit is thoroughly warmed-up, the
vacuum setting is 7” to 7.5” Hg, and ambient temperature is 70ºF to 75ºF.
Stronger vacuum and/or elevated temperature will increase the drip rate. Weaker vacuum and/or cooler temperature
will decrease the drip rate.
If the drip rate is not as specied, contact your dealer or RAMVAC.
Check V- Belt
Inspect V-belt for wear every 2,000 hours. Replace if cracked or frayed.
V-belt tension will not normally need adjustment. However, tension will need adjustment if belt
squeak at start up.
Contact RAMVAC for information.
Maintenance
S-Type Exhaust Filter
Check lter element every 2,000 hours.
Loosen band and remove cover, then remove bolt to inspect element inside surface for dirt build up.
Replace lter element when dirt is visible on inside surface.
Elements can be expected to last 5 to 10 years if oil is uncontaminated by liquids and particulates.
Unusually dusty environments, aspirating unusual quantities of air abrasives or other particulates, or
pump ooding can dramatically shorten the element’s service life.
Failure to maintain lter element can increase amperage and possibly trip motor overload.
Band
Cover
Bolt
Element