Volvo Truck Corporation Date Group No. Release Page Service Bulletin 12.05 175 09 18 22(47) If the gearbox has a rear power take off or an oil cooler, additional oil should be filled in accordance with the following table. Service categories For a number of reasons these gearboxes cannot have the same service recommendations. They have therefore been divided up into different service categories. Note: If the gearbox has no service category marked on the rating plate , it belongs to category G . Two different service recommendations can be applied to the gearboxes:
Standard service recommendation Alternative service recommendation The alternative service recommendation provides longer service intervals than standard service recommendation. The alternative service recommendation requires the use of special oils. The limits in the table must however be observed. Customers can always select the service recommendation they prefer after taking into consideration the relevant restrictions described in the following table. T1006942 The service categories, designated by a number or a letter, are indicated on the rating plate located on the gearbox.
The categories are G, 1, 2, 3 and 4 Component Additional amounts of oil in litres Single power take-off BKU/PTR 0,8 Double power take-off DBKU/PTRD 0,8 Oil cooler TC-MWO (Cool TW and T1, old designations) 0,1 Oil cooler TC-MWOH (Cool TWH and T1H, old designations) 0,8 Oil cooler TC-MAOH 0,8 Oil cooler TC-MWOH2 0,8 Oil cooler TC-MAOH2 0,8 Service category Restrictions when using alternative service recommendation G To use the alternative service recommendation on gearboxes R1000, R/SR1400, R/SR1700, R/SR1900, SR1700+ Geartronic and SR1900+ Geartronic, certain conditions must have been fulfilled: • The gearbox should be equipped with an improved oil filter guard.
The improved oil filter guard was introduced into production in August 1996. The oil filter guard can be retrofitted to older gearboxes. The replacement oil filter guard is available in the spare parts kit with part number 3094780 for gearboxes without retarder and 3094781 for gearboxes with retarder. • It is not possible to fit the improved oil filter guard to the gearbox if the old type of oil cooler VXKYL7 (coil cooler) is used with gearboxes R1000, R/SR1400, R/SR1700, R/SR1900, SR1700+ Geartronic and SR1900+ Geartronic. In these cases, the alternative service recommendation cannot be used. It is, however, possible to replace the old type VXKYL7 with the new type VXKYL7 (donut).
With the new type of VXKYL7, it is possible to fit the improved oil filter guard and in this way the alternative service recommendation can be used. In addition, the connection nipple in the spare part kits 3094780 or 3094781 must be replaced with part number 1671995. (The new type of VXKYL7 together with the improved oil filter guard is fitted in production on all gearboxes with oil coolers from August 1996. The new type of VXKYL7 is the same oil cooler as COOL T1.)