Barko 495B - SE, Руководство по обслуживанию

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Service Manual
495B SE (S)
49
Last Updated - 9/28/2016
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.