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Hydraulic SystemXR620/621/842/1045/1245/1254/1267/1534/2050/30349. If a boom lift or extend cylinder manual lowering valve was opened, close valve by turning theadjustment screw five turns clockwise (CW).10. Start engine and check operation of applicable hydraulic subsystem.Counterbalance valves are factory set. DO NOT adjust.8-17 REPLACE CARTRIDGE VALVE SOLENOIDPerform the following procedure to replace a cartridge valve solenoid:– TASK REQUIREMENTS –PersonnelOne mechanicSpecial tools and equipmentSafety glassesParts and consumable materials Danger tags (2)SolenoidINITIAL SET-UP1. Park forklift on level surface.2. Set Travel Select lever to NEUTRAL (N).3. Set Parking Brake switch to ON.4. Retract boom and lower carriage. Allow sufficient space to open forklift covers.5. Set Ignition switch to OFF.6. Attach danger tags to steering wheel and ignition key. Refer to para. 2-5, for lockout-tagoutprocedure.7. Relieve hydraulic system pressure as follows:a. Remove air breather from reservoir. Be careful to prevent contamination of air breather orreservoir fittings.b. Depress pressure relief valve in center of reservoir air breather fitting.REPLACE SOLENOID1. Disconnect solenoid connector (Figure 8-13) from chassis wiring harness connector.2. Turn nut on top of solenoid counterclockwise (CCW) to loosen.3. Remove nut from solenoid body.4. Lift solenoid off of valve body.5. Place new solenoid on valve body.Service Manual Rev 01 – 05/10 8-30P/N 24933-000