Approved Lubricating Oils; Changing The Lubricating Oil - Bosch rexroth HyDrotrAC GFt Operating Instructions Manual

48/64 HyDrotrAC GFt >130 knm | Servicing and repair
procedure
CorreCtion Copy 1 |17.10.2019 | onLy For internAL USe
Bosch Rexroth AG, Issue 10.2019, RE 79094

10.4.1 Approved lubricating oils

Fill the HYDROTRAC GFT planetary gearbox only with lubricating oil which has
been approved for this planetary gearbox according to the selection list –
industrial gear oils in appendix B "Required and supplementary
documentations" in the material number-specific operating instructions for
these planetary gearboxes.

10.4.2 Changing the lubricating oil

risk of damaging the planetary gearbox!
If you mix different oil types or the same oil types from different oil manufacturers,
this may change the oil properties!
f For re-filling, always use the same oil type from one oil manufacturer.
f Never mix synthetic lubricating oils with mineral oils or with other synthetic
lubricating oils.
f Fill the planetary gearbox with the oil quantity indicated in the technical data.
f Make sure to determine the exact oil quantity on the gearbox.
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.
Performing the lubricating oil change - t model:
f Observe the information on the planetary gearbox dimensioned drawing in
appendix D "Technical data / Drawings" of the material number-specific
operating instructions.
• Bore 5: for filling or checking the lubricating oil
• Bore 6 for draining the lubricating oil
1. Put the planetary gearbox out of service. Proceed as described in the machine/
vehicle operating instructions.
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 6 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 5 slowly, so that any existing pressure can
be released.
6. Then remove the screw plugs from bores 5 and 6.
7. Drain the lubricating oil completely in the catch basin.
NOTE