60-45
®
SERVICE- SERIES 45 HYD PUMP
(continued...)
8.
10.
9.
For electric proportional controls only: Remove the
electric control manifold drain orifice (C149)
.
Remove four
screws (C151)
. Remove the
manifold (C152)
and discard the two interface
O-rings
Remove
plug (C153)
. Remove the
cartridge valve nut (C125)
,
electric solenoid (C155)
, and
cartridge valve (C150)
from the electric control manifold.
(C154)
.
3.3.2 Inspection
5
6.
4.
1.
2.
3.
Inspect the adjusting plugs for wear at the tips and where they contact the springs; replace as
necessary.
Inspect the springs and spring guides for wear or damage; replace as necessary.
Inspect the control housing for damage. Check the spool bores for excessive wear.
Carefully inspect the spools. Ensure the sealing lands are free of nicks and scratches. Check the
ends that contact the spring guides for wear. Replace spools as necessary.
Remove debris from orifices if necessary. Ensure the servo control orifice backup plug is clean, and
remove debris if necessary.
Clean all parts and lubricate spools, springs, guides and new O-rings with clean hydraulic fluid.
3.3.2 Reassembly
4.
9.
1.
5.
6.
3.
7.
2.
8.
10.
Install the
servo control orifice (G020)
, and torque to
2.7 N•m [24 in•lb]
. Then install the
orifice
backup plug (G030)
, and torque to
2.7 N•m [24 in•lb]
.
Install the
PC spool (C132)
, spherical end first, into the PC bore. Install
plug (C103)
. Torque the
plug to
12 N•m [8.9 lbf•ft]
.
Place the two
PC springs (C134, C135)
onto the
spring guide (C133)
and install into the PC bore.
Place a new
O-ring (C138A)
onto the
PC adjusting screw (C138)
and thread it into the PC bore
until flush, then make another full turn. Install and torque the
PC set screw (C102)
to
9.6 N•m [7.1
lbf•ft]
.
Install the
LS spool (C112)
, spherical end first, into the LS bore.
Install
plug (C104)
. Torque the plug to
12 N•m [8.9 lbf•ft]
.
Place the two
LS springs (C114, C115)
onto the
spring guide (C113)
and install into the LS bore.
Thread
adjusting screw (C118)
into the LS bore until flush, then make another full turn. Install and
torque the
LS set screw (C102)
to
9.6 N•m [7.1 lbf•ft]
.
Install the
electric control manifold drain orifice (C149)
and torque to
2.7 N•m [24 in•lb]
.
Install the
cartridge valve (C150)
into the
electric control manifold (C152)
. Torque to
27.7 N•m
[20.4 lbf•ft]
. DO NOT OVERTORQUE the cartridge valve.
Install the
electric solenoid (C155)
, and
solenoid coil nut (C125)
. Torque to
8.7 N•m [6.4 lbf•ft]
.
Install
plug (C153)
. Torque the plug to
12 N•m [8.9 lbf•ft]
.
06/05/2019
Updated
SERVICE
Summary of Contents for 830B
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