Proper lubrication is the key to long life for your blowers. The Roots Universal RAI® series utilizes grease on the drive end and oil on the gear end. For more information about the type of oil and grease needed, read more here: Lubrication for Rotary Lobe Blowers
Please note, the amounts listed in your manual and on this website are an approximate amount of oil to have on hand for the oil change.
When adding oil to your blower, the correct oil level in the oil sump is determined strictly by using the oil sight glass or oil level plug. Make sure you use these indicators so you do not overfill the unit!
| MODEL | OIL – DRIVE END VERTICAL |
OIL – DRIVE END HORIZONTAL |
OIL – GEAR END VERTICAL |
OIL – GEAR END HORIZONTAL |
GREASE |
|---|---|---|---|---|---|
| URAI 22 | N/A | N/A | 3.4 Fl. Oz | 6.1 Fl. Oz | Drive End |
| URAI 24 | N/A | N/A | 3.4 Fl. Oz | 6.1 Fl. Oz | Drive End |
| URAI 32 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI 33 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI 36 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI 42 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI 45 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI 47 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI 53 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI 56 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI 59 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI 65 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI 68 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI 615 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI 76 | N/A | N/A | 32.3 Fl. Oz | 59.5 Fl. Oz | Drive End |
| URAI 711 | N/A | N/A | 32.3 Fl. Oz | 59.5 Fl. Oz | Drive End |
| URAI 718 | N/A | N/A | 32.3 Fl. Oz | 59.5 Fl. Oz | Drive End |
| URAI-DSL 32 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-DSL 33 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-DSL 36 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-DSL 42 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-DSL 45 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-DSL 47 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-DSL 53 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-DSL 56 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-DSL 59 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-DSL 65 | 16 Fl. Oz | 31 Fl. Oz | 28.3 Fl. Oz | 52.1 Fl. Oz | N/A |
| URAI-DSL 68 | 16 Fl. Oz | 31 Fl. Oz | 28.3 Fl. Oz | 52.1 Fl. Oz | N/A |
| URAI-DSL 615 | 16 Fl. Oz | 31 Fl. Oz | 28.3 Fl. Oz | 52.1 Fl. Oz | N/A |
| URAI-J 33 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-J 36 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-J 45 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-J 47 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-J 56 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-J-DSL 33 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-J-DSL 36 | 4 Fl. Oz | 6.5 Fl. Oz | 8.5 Fl. Oz | 10.5 Fl. Oz | N/A |
| URAI-J-DSL 45 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-J-DSL 47 | 5.5 Fl. Oz | 10.8 Fl. Oz | 12.7 Fl. Oz | 14.5 Fl. Oz | N/A |
| URAI-J-DSL 56 | 7.5 Fl. Oz | 14.8 Fl. Oz | 16 Fl. Oz | 27.6 Fl. Oz | N/A |
| URAI-G 32 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-G 33 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-G 36 | N/A | N/A | 8.5 Fl. Oz | 10.5 Fl. Oz | Drive End |
| URAI-G 42 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-G 45 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-G 47 | N/A | N/A | 12.7 Fl. Oz | 14.5 Fl. Oz | Drive End |
| URAI-G 53 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-G 56 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-G 59 | N/A | N/A | 16 Fl. Oz | 27.6 Fl. Oz | Drive End |
| URAI-G 65 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI-G 68 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
| URAI-G 615 | N/A | N/A | 28.3 Fl. Oz | 52.1 Fl. Oz | Drive End |
