Repair; Lubricants; Lubricant Changes; Lubricant Grade - Danfoss VLT OneGearDrive Operating Instructions Manual

Service and Maintenance

4.3 Repair

NOTE
Always return defective VLT
Danfoss Sales Company.

4.4 Lubricants

4 4

4.4.1 Lubricant Changes

The gear units are supplied with lubricant ready for
operation.
Table 4.4 shows the oil change intervals based on normal
operating conditions and a lubricant temperature of
approximately 80 °C. The lubrication interval must be
reduced at higher temperatures (halve it for each 10 K
increase in the lubricant temperature).
Lubricant type
PGLP220
Optileb GT220 H1 (food grade)
Table 4.4 Lubricant Change Intervals

4.4.2 Lubricant Grade

Oils PGLP 220 and PGLP 68 comply with DIN 51502 and DIN 51517 and are suitable for lubricating the gear unit. Food
grade oils which comply with NSF H1 can be used.
The lubricant must permit low-friction, virtually wear-free continuous operation. The damage load level on the FZG test as
specified in DIN 51354 should be in excess of load level 12, and the specific wear below 0.27 mg/kWh. The lubricant should
not foam, should protect against corrosion, and should not attack the interior paint, the rolling contact bearings,
gearwheels, and seals.
Lubricants of different types may not be mixed, as this may impair the lubrication characteristics. A long service life is only
ensured by the use of a lubricant listed in Table 4.5 or equivalent.
®
If the VLT OneGearDrive is stored for a longer period of time before installation, refer to 6.2 Storage.
The following wear-protecting EP gear lubricant oils are recommended.
Lubricant Manufacturer
ARAL
BP
CASTROL
FUCHS
KLÜBER
MOBIL
18
®
VLT OneGearDrive Operating Instructions
®
OneGearDrives to the local
Lubricant change interval
25000 operating hours
35000 operating hours
Standard oil
Synthetic oil
PGLP 220
Degol GS 220
Enersyn SP-XP 220
Alphasyn PG 220
OPTIFLEX A 220
Renolin PG 220
Klübersynth GH 6-220
Glygoyle HE 220
Glygoyle 30
®
MG75C302 - VLT
The gear units have filling plugs and drain plugs. In the
standard designs, these make it possible to change the
lubricant without disassembly.
It is also necessary to flush the gear unit enclosure if the
lubricant grade or lubricant type is changed.
If the motor is only used briefly, it is sufficient to drain off
the original oil and use the original lubricant type to refill
the maximum possible amount for the gear unit as defined
on the nameplate. Then operate the drive unit briefly
under no load, drain this oil off again and refill with the
new lubricant as defined on the nameplate.
If necessary, drain off the original lubricant and flush out
the gear unit with petroleum until all traces have been
washed out. Then perform the procedure described for
short-term operation twice before filling with the specified
volume of new lubricant in accordance with the
nameplate.
Inspect, and if necessary replace, the wear parts (seals)
when changing the lubricant.
Low temperature
Synthetic oil
PGLP 68
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–
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Renolin PG 68
Klübersynth GH 6-80
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is a registered Danfoss trademark
Food Grade Oil
NSF
USDA H1 oil
Eural Gear 220
–
OPTILEB GT 220
–
Klüberoil 4UH1-220N
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