Eaton Electrical 350 - Manual (Page 2)

2 EATON 350 Series Dual Path Mobile Pumps E-PUPI-TS006-E September 2007
Introduction ....................................................................................2
Exploded View ................................................................................3
Parts List ........................................................................................5
Model Code ....................................................................................8
Rotating Kit Assembly ..................................................................10
Drive Shafts ..................................................................................13
Relief Valve Sub-Assembly............................................................14
Housing Identification ..................................................................14
Servo Piston Assembly ................................................................15
Index of Mechanical Servo Controllers,
Control Valve Sub-Assemblies ......................................................16
Charge Pump Adapter Assumbly..................................................24
Assembly ......................................................................................25
Required Tools ..........................................................................25
Swash Plate Sub-Assembly......................................................26
Mechanical Servo Control ........................................................27
Rotating Kit Asembly................................................................29
Servo Piston Assembly ............................................................30
Dual Pump Housing Assembly ................................................31
Rear Pump Assembly ..............................................................32
Front Pump Assembly ..............................................................35
Troubleshooting ..........................................................................39
Start-Up Procedure ......................................................................44
How To Order................................................................................45
Table of Contents
Introduction
This manual provides service
information for the Eaton
Model 350 Series Piston
Pumps. Step-by-step instructions
for the complete assembly
of the pump are given. For
dis-assembly, follow the reverse
of the assembly instructions.
These recommendations
should be followed to insure
successful repairs.
• Remove the pump from the
vehicle.
• Cleanliness is extremely
important.
• Clean the port areas thor-
oughly before disconnecting
the hydraulic lines.
• Plug the pump ports and
cover the open hydraulic
lines immediately after
they’re disconnected.
• Drain the oil and clean the
exterior of the pump before
making repairs.
• Wash all metal parts in
clean solvent.
• Use compressed air to dry
the parts. Do not wipe them
dry with paper towels or
cloth.
• The compressed air should
be filtered and moisture
free.
• Always use new seals when
reassembling hydraulic
pumps.
• Lubricate the new rubber
seals with a petroleum jelly
(Vaseline) before installation.
• Torque all bolts over gasketed
joints, then repeat torquing
sequence to make up for
gasket compression.
• Verifying the accuracy of
pump repairs on an authorized
test stand is essential.