Bosch Rexroth Hagglunds VI 64 Series - Before Commissioning; Commissioning

Handling 55/68
Hägglunds VI, RE 15310-WA/10.2015, Intallation and maintenance manual, Bosch Rexroth Mellansel AB
4.2 Before commissioning
Fill the motor with ltered oil in the following order, see gure below: “1”, “D1”, “C”
and “A”. The following must be checked, depending upon the motor type, before
starting up:
1. Check that the motor is connected for correct rotation (see 3.2 “Oil connections”
and 3.3 “Reversal of rotation”).
2. Choose the type of hydraulic uid which matches the oil recommendations (see
2.2 “ Choice of hydraulic uid”).
3. Fill the motor housing with hydraulic uid at least to the level of the shaft centre
(see 3.1 “Mounting instruction”).
CAUTION
4. Check the drainage line for any restrictions which might cause overpressure in
the motor case (see 3.1 “Mounting instruction”).
5. Check that the motor is protected against overloading (see 1.2 “Motor data”).
6. Check that the charge pressure corresponds with the charge pressure graph (see
2.1 “Recommended pressure”).
4.3 Commissioning
During the start up period, a hydraulic installation must be checked regularly and
thoroughly at frequent intervals. Working pressure and charge pressure must be
checked, and correspond, with calculated values.
44-, 64- and 84-series
• Pressure in the drain line, measured at the motor, should be less than 3 bar/43.5
psi (for 1 % of the operation time evenly divided, pressure peaks of max. 5 seconds
up to 8 bar/116 psi are allowed).
• For motors with silicon rubber main seals, these values must be reduced 50 %.
• These pressure limitations are important for the service life of the motor.
• If leakage occurs, repair the fault and then carry out measurements.
• Check all lines, connections, anges, bolts, etc. Tighten if necessary.
• Check other possible leakage points and replace any faulty parts.
• Change dirty hydraulic uid immediately.
• Control that rotating parts can not cause damage.
Flushing of motor case
To avoid high temperature in the motor case, the heat must be cooled away because
high temperature gives lower viscosity and that gives reduction in service life. Low
viscosity also gives reduced permitted output power from the motor.
For continuous duty in applications with an ambient temperature of +20°C (+68°F),
the motor case must be ushed when the out put power exceeds following values:
Max. power without ushing
VI 44- and 64-series 120 kW 161 hp
VI 84-series 140 kW 188 hp
For calculation of required ushing, please contact a Hägglunds representative.