Bosch Rexroth ROTATRAC eGFT 8000 10 Series Manual page 49

Perform an oil change before the planetary gearbox has completely cooled down.
This ensures that solid particles have not yet settled.
Strictly observe the lubricating oil manufacturer's product data sheets and safety
data sheets when handling lubricating oil. These data sheets are not included
within Rexroth's scope of supply.
Change the lubricating oil at the intervals specified in the maintenance schedule. If
existing, observe the maintenance schedule in the material number-specific
operating instructions.
Procedure Performing the lubricating oil change:
Observe the information on the planetary gearbox dimensioned drawing in appendix
D "Technical data / Drawings" of the material number-specific operating
instructions!
• „Bore 8: for checking the lubricating oil
• „Bore 9: for draining the lubricating oil
1 Put the planetary gearbox out of service. Proceed as described in the instructions
of the machine or the overall vehicle.
2 Check the oil level as described in chapter 10.2.2 "Checking the oil level of the
planetary gearbox".
3 Turn the planetary gearbox as shown in the figure on the left: bore 8 in 9 o'clock
position and bore 9 in 6 o'clock position.
4 Place a catch basin with sufficient capacity under the planetary gearbox.
5 Loosen the screw plugs of the bore 8 slowly, so that any existing pressure can be
released.
Then remove the screw plugs from bores 8 and 9.
6
Drain the lubricating oil completely in the catch basin.
7
8 Check visually whether e.g. water, metal particles or mud are in the drained
lubricating oil.
9 In case of important contamination, find out the cause before refilling. Contact
the Rexroth Service located in your area, for the address refer to appendix
A "Address directory" in the material number-specific operating instructions.
10 If the lubricating oil is contaminated, flush the lubricating oil system carefully
before filling the planetary gearbox with new lubricating oil.
Dispose of this drained lubricating oil in accordance with local country
11
regulations.
12 Check whether the seals on the screw plug threads of bore 8 and bore 9 are still
in perfect condition and can be reused. Replace the damaged seals.
13 Seal bore 8 and bore 9 with the corresponding screw plugs.
14 Then fill the planetary gearbox with clean lubricating oil according to the
selection list – industrial gear oils. Proceed as described in chapter 8.1.3 "Filling
the oil through the oil filler opening" or 8.1.4 "Filling the oil cooling circuit of the
planetary gearbox using an external pump (pump not included in the Rexroth
scope of supply).
RE 79088-01-B/02.2019, ROTATRAC eGFT 8000 general operating instructions series 10, Bosch Rexroth AG
Servicing and repair 49/64