32
EATON
620 Mobile Open Circuit Piston Pump Service Manual E-PUPI-TS018-E2 November 2017
Assembly
Assembly must be conducted in a clean
environment . Dispose of leakage oil and
oily cloths in an environmentally responsible
manner . Before assembly carefully clean
all the parts and blow out holes with
compressed air . Tighten all the screw plugs
to the specified torque . Exceptions are
specified in the text . Lubricate O-rings and
shaft sealing rings lightly with an acid free
lubricant and to hold the O-ring in place in its
groove or cavity .
1. Install snap ring and shaft seal
Note:
Press shaft seal inside till the
face of the seal exactly matches with
inner surface of retaining ring groove .
3. Install cradle bearings
Note:
The cradle bearings are asymmetrical .
Install with longer side towards the top of the
pump (controller side) .
4. Install cradle bearing screws
Note:
The old cap screws can not be reused
and must be replaced with new ones because
the screws will be damaged during disassem-
bly . The new cap screw threads will be coated
with loctite .
2. Insert the shaft bearing race