MODEL V1433XL, V1433 MODEL V1833XL, V1833 - MinnPar

PRESSURE ADJUSTMENT PROCEDURES•NOTES: All pressure adjustments are to be made with the pump motor running, and with the hydraulicfluid at operating temperature. Ensure that the tank is filled to its recommended level, and that thebatteries are fully charged. To simplify the adjustment procedure, install a pressure gauge at the "G 1 "port, and install another pressure gauge at the "G2" port, which are both located at the creep valve endof the main valve assembly. All relief valves adjust in the same manner: clockwise increases pressuresetting, and counterclockwise decreases pressure setting. All flow control cartridges adjust in the samemanner: clockwise decreases flow, and counterclockwise increases flow. Refer to FIG. 8 foradjustments.Drive Pressure Adjustment1. Chock both drive wheels to prevent them from spinning in the forward drive direction.2. With the drive speed selector in the low position, activate forward drive with the drive controller.3. While drive is activated, adjust "RVI" to 2700 psi while observing the gauge reading from the"GI" port.4. After setting, lock the adjustment screw with the jam nut.High Drive Pressure Adjustment1. Select high speed at upper control box.2. Observe the pressure reading at the "G 1 " port while climbing a grade, and note pressure readingat which the high drive shifts to low.3. Adjust the "SEQ" valve until the pressure reading is 1100 psi when high drive shifts to low.4. After setting, lock the adjustment screw with the jam nut.NOTE: The load control valves, "CB 1 " and "CB2", are factory set. Ifthey are not functioning properly,they must be replaced; DO NOT ATTEMPT ADJUSTMENT.Lift PressurelDescent Speed Adjustment1. With pump running, and platform raised completely (cylinder bottomed out), observe thepressure reading on the gauge connected to the "G2" port. Adjust "RV2" to 2700 psi.2. Adjust "FCI" to obtain a 25-35 second descent from a fully raised position.MANUAL 92370-002November 1997