T415 Operation & Service Manual
96
Maintenance
24
25
BLN-10197 • 520L0532 • April 2002
Series 45 Frame K and L Open Circuit Axial Piston Pumps
Service Manual
Minor repair
BLN-10197 • 520L0532 • April 2002
Series 45 Frame K and L Open Circuit Axial Piston Pumps
Service Manual
Minor repair
CONTROL
Disassembly
1. Remove the four screws (C300)
holding the control housing onto the
end cap.
2. Remove the control and discard the
three interface O-rings (C200).
3. Remove the PC set screw (C102),
PC adjustment screw (C138), O-ring
(C136), springs (C135, C134), and seat
(C133). Discard the O-ring.
4. Remove the plug (C103), O-ring
(C103A), and PC spool (C132) from
the control housing; discard the O-
ring. Note orientation of the spool for
reassembly.
5. Remove the plug (C107) and O-ring
(C107A); discard the O-ring.
Note: For PC only controls, skip steps 6
and 7.
6. Remove the LS set screw (C102),
LS adjustment screw (C118), O-ring
(C116), back-up rings (C117), springs
(C114, C115), and seat (C113); discard
the O-ring.
7. Remove the plug (C106), O-ring
(C106A), and LS spool (C112) from
the control housing; discard the
O-ring. Note orientation of the spool
for reassembly.
C117
C118
6mm
C116
C117
C114
C115
C113
C200
C138
6mm
C136
C135
C134
C133
C132
C103A
C112
C106A
C106
3/16 in
11-14 N•m
[8-10 lbf•ft]
C103
3/16 in
11-14 N•m
[8-10 lbf•ft]
C300 (4pl.)
5mm
15-18 N•m
[11-13 lbf•ft]
C102 (2pl.)
4mm
7-11 N•m
[6-8 lbf•ft]
P101 667
C107A
C107
3/16 in
11-14 N•m
[8-10 lbf•ft]
Control assembly
LS control shown; parts C106 and C112 through
C118 are not used on PC control
Inspection
8. Inspect the adjustment screws for wear at the tips and where they contact the
springs; replace as necessary
9. Inspect the springs and spring guides for wear or damage; replace as necessary.
10. 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.
11. Inspect the control housing for damage. Check the spool bores for excessive wear.
12. Clean all parts and lubricate spools, springs, guides and new O-rings with clean
hydraulic fluid.