Benzlers C Series, Installation & Maintenance

Page: 10 / 41

Lubrication
Page 8 Issue 2
6. Lubrication
6.1. General
6.1.1.
Series M F & K size 7 and below will be supplied factory filled with a quantity of EP mineral oil
(Grade 6E) appropriate to the intended mounting position. However if, as requested, the gear unit is
supplied without lubricant then the oil quantity required is obtained from Appendix 4. Gear units size
8 and larger are supplied without lubricant (unless factory filled by request). Recommended
lubricants are listed in our Approved Lubricants pages in Appendix 4.
6.1.2. Series C size 6 and below are supplied factory filled with synthetic lubricant (Grade 6G). Size 7 and
larger are supplied without lubricant.
Temperature Limitations
The standard lubricant is suitable for operation in ambient temperatures of 0° to 35°C. Outside of this
consult Table L1 or Application Engineers.
6G (VG 320) 7G (VG 460)
Polyglycol
based Synthetic
(type G)
Polyalphaolefin
based Synthetic
with EP additive
(type H)
CLP (PG) 5G (VG 220)
Ambient Temperature Range
Lubricant (ISO)
EP Mineral Oil
(type E)
CLP (CC) 5E (VG 220) 6E (VG 320) 7E (VG 460)
-5°C to 20°C (type E)
-30°C to 20°C (type G & H)
0°C to 35°C 20°C to 50°C
CLP (HC) 5H (VG 220) 5H (VG 220) 6H (VG 320)
Table L1
Note! CLP (CC) & CLP (HC) are the recommended lubricants for Series F K & M.
6.2. Ventilator
6.2.1. Clean & secure the ventilator (if supplied) in the correct location for the required mounting position.
(See Appendix 4)
6.3.
Oil Level:
Units supplied without oil:
6.3.1. Fill gear unit with correct type of lubricant until oil escapes from level plug. See Appendix 4
Factory filled units:
6.3.2. If the unit is fitted with a level plug, (See Appendix 4) check oil level and top up with correct oil type
as necessary.
WARNING Do not overfill as excess may cause overheating and leakage.
6.3.3. Re-fit plugs & tighten to correct torque figure – see notes in maintenance section. Clean away any
oil spillage from the surface of the gear unit and driven machinery.