Flowserve Gearex Rotary Gear Pumps External and Internal Bea User Manual download pdf (Page 29)

EXTERNAL GEAREX USER INSTRUCTIONS ENGLISH 71569246 (2167B-E1)

Flowserve Pump Division 29

The oil filled bottle should then be refitted so as to

return it to the upright position. Filling should be

repeated until oil remains visible within the bottle.

Other drivers and gearboxes, if appropriate, should be

lubricated in accordance with their manuals.

In the case of product lubricated

bearings the source of product supply should be

checked against the order. There may be

requirements for an external clean supply, particular

supply pressure or the commencement of lubrication

supply before pump start-up.

5.1.3.2 Internal bearing pump

Bearing lubrication is provided by the liquid being

pumped. To further ensure circulation of fluid through

the bearings, internal ports are provided in the bearing

housings. These ports are located on the suction side

of the pump only.

5.2 Pump lubricants

5.2.1 Typical oils

Company Column “A” Column “B” Column “C”

Mobil

Mobil DTE Oil BB

MOBILGEAR 626 Mobil DTE Oil HH

Shell

OMALA Oil 220 OMALA Oil 68 OMALA Oil 460

Sunoco

SUNVIS 790 (220) SUNVIS 747 (46) SUNVIS 7150

Amoco

RYKON Oil No. 220 AMOGEAR No. 68 American Industrial Oil No. 460

Texaco

REGAL R&O 220

MEROPA 150 REGAL R&O 460

Arco

PENNANT NL 220 PENNANT NL 68 RUBILENE 460

Chevron

AW Machine Oil 220 EP Industrial Oil 46x NL Gear Compound 460

Exxon

TERESSTIC N220 SPARTAN EP 68 TERESSTIC 460

*Esso

TERESSO N220

SPARTAN EP 68 CYLESSO TK 460

Petro Canada

GIREX 220 GIREX 68 GIREX 320

*Imperial Oil Limited (Canada)

5.2.2 Recommended fill quantities for external

bearing pump

Refer to section 3.4 Performance and operating

limits.

5.2.3 Checking running oil level in gear housing

If the oil reservoir is filled to the level indicated on the

column gauge (when pump is at running speed),

ample lubrication will be provided for the timing gears

and bearings contained in the housing.

However, if field operating conditions (temperature,

etc.) vary considerably from standard, the level must

be checked internally to insure proper lubrication.

Follow the procedure as outlined below.

a) Remove the filler vent plug.

b) With the pump running at rated speed and

operating temperature, the timing gears should

pick up enough oil to create a fine mist

throughout the gear case. Too much oil will

cause overheating. Too little oil will cause gear

and bearing failure. Adjust oil level until fine mist

is present.

c) Replace vent filler and pipe plugs.

d) Repeat procedure periodically to ensure proper

lubrication and extended pump life.

5.2.4 Lubrication schedule for

external bearing pump

5.2.4.1 Requirements for oil lubricated bearings

Normal oil change intervals are 4 000 operating hours

or at least every 6 months. For pumps on hot service

or in severely damp or corrosive atmosphere, the oil

will require changing more frequently. Lubricant and

bearing temperature analysis can be useful in

optimizing lubricant change intervals.

The lubricating oil should be a high quality mineral oil

having foam inhibitors. Synthetic oils may also be

used if checks show that the rubber oil seals will not

be adversely affected.

The bearing temperature may be allowed to rise to

50 ºC (122 ºF).above ambient, but should not exceed

82 ºC (180 ºF). A continuously rising temperature, or

an abrupt rise, indicate a fault.

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Flowserve Gearex Rotary Gear Pumps External and Internal Bea User Manual Page 29

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