Barko 830B, Service Manual

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60-21 ®
SERVICE- SERIES 90 HYD PUMP
(continued...)
P2B1
P2A1
P06
P13
P12
P13
P14 P09 P11
P06
P05
P07
P15
P16
P17
P08
P03
P04
P02
P01
3.3 Multi-Function Valve Cartridges (see Fig-3 & 4)
***only applies to pumps manufactured from 1988 and later***
3.3.1 Removal
6.
5.
4.
3.
2.
1.
The poppet seat section is pressed over a lip. Place the cartridge in a vise and pry the poppet seat
(P12) off with an appropriate tool. Maintain sufficient control to prevent the internal components
from flying loose. Do not damage parts during disassembly.
Remove internal parts (P07, P08, P17, P16, P15, P14, P09, and P11).
Remove and discard O-ring (P02). Multi-function valves are sold as complete units only. You may
purchase O-rings separately.
Remove and discard O-rings (P13 and P06).
Relieve spring pressure by removing bypass actuator (P03), using a 1-1/16 wrench. To retain
pressure setting, do not separate adjusting screw (P01), and locknut (P04) from bypass actuator
(P03).
Remove multi-function valves (P2A1 and P2B1)
Fig-3
Fig-4
06/05/2019
Updated
SERVICE