Operation and Maintenance Manual
Last Updated - 08/31/2016
495B ML TM (S)
50
COLLECTOR TROUBLE SHOOTING CONTINUED...
Figure 2
Pilot
Filter
Pilot Relief
(pressure reducing valve)
Pilot
Supply
Port
Load
Sense
Pressure
Port
(PL)
Pump
Pressure
Gauge Port
(PX)
K170 UPPER VALVE BANK
Counter
Pressure
Valve
Port Reliefs
(non-adjustable)
Feed
Reducers
Outlet Cover
(with pressure in)
Counter
Pressure
Valve
Feed
Reducers
Rotate
Stick
Swing
O/C
Main
Inlet Cover
Port Reliefs
(non-adjustable)
Main Relief
(non-adjustable)
Main Relief
(non-adjustable)
A
B
A
B
A
B
A
B
A
B
A
B
A
B
Active Fill
Valve
COLLECTOR SEAL REPLACEMENT
(For Collector 553-02044)
See Figure 3.
Find a clean work area to perform this procedure.
1. Remove retaining plate cap screws, retaining plate, dust shield o-ring and nylon thrust washer. Separate the
spool and housing by pressing or gently tapping with a plastic mallet and remove wear rings.
2. Clean and inspect the housing bore for any physical signs of damage. NOTE: Polished witness marks from the
seals will be visible, but present no problem unless they show excessive wear.
3. Placing the spool upright on the work surface, remove all of the seals and back-up o-rings by pushing a small flat
head screw driver through the seal and o-rings, being careful not to scratch any part of the seal groove.
4. Remove the lower nylon thrust washer and lower o-ring. Clean and inspect the spool for any physical damage.
Summary of Contents for 495B SD
Page 3: ...Introduction...
Page 7: ......
Page 16: ...Maintenance...
Page 19: ...Operation and Maintenance Manual 495B ML TM S 19 Last Updated 08 31 2016 SERVICE SCHEDULE...
Page 29: ...Hydraulic...
Page 57: ...Electrical...
Page 58: ...Operation and Maintenance Manual Last Updated 08 31 2016 495B ML TM S 58 ELECTRICAL SCHEMATIC...
Page 78: ...Maintenance...
Page 88: ...Operation and Maintenance Manual Last Updated 08 31 2016 495B ML TM S 88 Structural...
Page 95: ...Trouble Shooting...