Yale GDP120VX User Manual

Maintenance
CALIBRATION
PROCEDURES
GC/GLC030VX, GC/GLC035VX, GC/GLC040SVX [C809];
GLP/GDP16VX, GLP/GDP18VX, GLP/GDP20SVX (GP/GLP/
GDP030VX, GP/GLP/GDP035VX, GP/GLP/GDP040SVX) [C810];
GLC20-35VX (GC/GLC040-070VX, GC/GLC055SVX) [A910, B910];
GLP/GDP20-35VX (GP/GLP/GDP040-070VX) [B875, C875];
GLC40, 45, 55VX; GLC55SVX (GC/GLC080, 100, 120VX; GC/
GLC080, 100VXBCS; GC/GLC120SVX; GC/GLC120VXPRS)
[E818, F818];
GLP/GDP40VX5/VX6; GLP/GDP45SVX5, GLP/ GDP45VX6; GLP/
GDP50-55VX (GP/GLP/GDP080, 090, 100, 110, 120VX)
[F813, G813, H813, J813];
GLP/GDP60VX, GLP/GDP70VX; (GP/GLP/GDP135VX, GP/GLP/
GDP155VX) [C878, D878, E878];
GLC/GDC60VX, GLC/GDC70VX; (GC/GLC/GDC135VX, GC/GLC/
GDC155VX) [C879, D879, E879, F879];
GLP/GDP80VX, GLP/GDP80VX9, GLP/GDP90VX (GLP/GDP170VX,
GLP/GDP175VX36, GLP/GDP190VX) [A909, B909];
GLC030-035VX, GLC040SVX [D809];
GLP/GDP16-18VX, GLP/GDP20SVX (GLP/GDP030-035VX, GLP/
GDP040SVX) [D810];
GLC20-35VX (GC/GLC040-070VX, GC/GLC055SVX) [C910];
GLP/GDP20VX, GLP/GDP25VX, GLP/GDP30VX, GLP/GDP35VX
(GP/GLP/GDP040VX, GP/GLP/GDP050VX, GP/GLP/GDP060VX,
GP/GLP/GDP070VX) [D875]
This manual contains information that is confidential and/or proprietary to Yale Ma-
terials Handling Corporation, its subsidiaries and/or vendors. Copying or distribu-
tion of any sections of this manual marked "Confidential/Proprietary" is prohibited.
PART NO. 524223780 8000 YRM 1134

Yale GDP120VX Specifications

General

Brand	Yale
Model	GDP120VX
Category	Forklifts
Language	English

Summary

Safety Precautions for Maintenance and Repair

Calibration Procedures

Description of Calibration Procedures

Introduces calibration procedures, menu progression, and how to read them.

Service Password Entry (Proc_Cal_001)

Procedure to enter service password for accessing calibration menus.

Hydraulic Valve Calibration Warm Up and Air Bleed (Proc_Cal_002)

Warms up hydraulic fluid and bleeds air from valves before calibration.

Save and Exit Calibration (Proc_Cal_003)

Saves calibration results and exits the current calibration routine.

Lift Valve Output Threshold Calibration (Proc_Cal_004)

Determines the cracking current for the lift valve.

Lower Valve Output Threshold Calibration (Proc_Cal_005)

Determines the cracking current for the lower valve.

Tilt Back Valve Output Threshold Calibration (Proc_Cal_006)

Determines the cracking current for the tilt back valve.

Tilt Forward Valve Output Threshold Calibration (Proc_Cal_007)

Determines the cracking current for the tilt forward valve.

Aux 1 Dir A Valve Output Threshold Calibration (Proc_Cal_008)

Determines the cracking current for Aux 1 Dir A valve.

Aux 1 Dir B Valve Output Threshold Calibration (Proc_Cal_009)

Determines the cracking current for Aux 1 Dir B valve.

Aux 2 Dir A Valve Output Threshold Calibration (Proc_Cal_010)

Determines the cracking current for Aux 2 Dir A valve.

Aux 2 Dir B Valve Output Threshold Calibration (Proc_Cal_011)

Determines the cracking current for Aux 2 Dir B valve.

Aux 3 Dir A Valve Output Threshold Calibration (Proc_Cal_012)

Determines the cracking current for Aux 3 Dir A valve.

Aux 3 Dir B Valve Output Threshold Calibration (Proc_Cal_013)

Determines the cracking current for Aux 3 Dir B valve.

Load Weight Zero Point Calibration (Proc_Cal_014)

Sets the zero point for load weight displays on the truck.

Loaded Weight Calibration (Proc_Cal_015)

Calibrates the system for accurate loaded weight measurements.

Transmission Valve Calibration (Proc_Cal_016)

Compensates clutch pack control valve pressure for transmission functions.

Transmission Valve Calibration - Electronic Extended Function (Proc_Cal_016A)

Calibrates electronic extended function transmission valve settings.

Transmission Valve Calibration - Electronic and Electronic Extended Function (Proc_Cal_016B)

Calibrates electronic and extended function transmission valve settings.

Mazda LP and Gas Accelerator Pedal Adjustment (Proc_Cal_019)

Adjusts throttle assembly for proper clutch pack and inching function.

Hydraulic Valve Pressure Gage Installation (Proc_Cal_025)

Installs a pressure gauge for pressure-based hydraulic calibrations.

Travel Speed Calibration (Proc_Cal_026)

Calibrates travel speed sensor for accurate transmission control.