MacDon R113 Assembly Instruction Manual page 114

NOTE:
This procedure is the same for both forward and rear
swivel gearboxes and must be performed on both upper
and lower gearboxes.
1. Clean area around check plug (A).
2. Remove check plug using a 15 mm socket.
3. Check lubricant level and ensure lubricant is visible or
slightly draining form the port.
4. Add SAE 85W-140 gear oil to gearboxes through
breather/filler plug (B) (if necessary).
5. Reinstall check plug (A) and breather/filler plug (B)
and tighten.
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PERFORMING PREDELIVERY CHECKS
108
Figure 8.15: Swivel Gearbox
Revision D