Hägglunds Compact CA, Руководство по установке и обслуживанию

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Installation and Maintenance Manual, Compact CA Installation
3.2.2 Draining and venting the motor
Horizontal mounting
When the motor is installed with the shaft in the horizontal plane, it can be drained without special
provisions for venting. The highest of the three drain outlets D1, D2
or D3 must always be used;
see figure 3.43.
Drain line must be connected direct to the tank with a minimum of restrictions, to ensure that the
maximum housing pressure is not exceeded.
Vertical mounting
When the motor is mounted vertically, one or the other of the vent holes must be connected to the
drain line. Which of the holes that is to be used depends on whether the motor shaft is pointing
upwards or downwards.
Motor shaft pointing downwards
The motor must be connected to the drain connection in D1 or D2 and F3 or F4. See figure 3.44
Motor shaft pointing upwards
The motor must be connected to the drain line connection on the shaft end housing; see figure 3.45.
The flushing connection F on the shaft end housing should be connected to the low pressure con-
nection. With bidirectional drives, use the connection with lowest average pressure. (Connection
to high pressure will increase the motor drain flow). This gives flushing of the radial lip seal. It is
advisable to fit the nipple and the hose to the motor before fitting the torque arm.
Figure 3.43
Figure 3.44
Drain line
connection
Drain line D1 or D2,
and F3 or F4
Flushing con-
nection F
Orifice
∅
1.0 (0.04)
Drain line D3
G 1/4" Low Pressure
Figure 3.45
D3 connection