MTS Model 512-04 Hydraulic Power Unit - Manual (Page 29)

Model 512.04 Hydraulic Power Unit Maintenance 29
Lubricating the Motor
This pump’s motor bearing of the hydraulic power supply (HPU) needs
lubrication every six months.
Use Shell Dolium R. Chevron SRI No. 2, or Texaco Premium RB grease.
1. Turn off the HPU.
2. Wipe off both grease fittings.
Do not overgrease the motor.
Too much grease could short out the motor.
3. Using a grease gun, apply grease to each fitting.
Grease Fittings
CAUTION