Yale GDP155VX - 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 GDP155VX Specifications

General

Model	GDP155VX
Manufacturer	Yale
Power Supply	9V Battery
Type	Digital
Display	LCD
Operating Temperature	32° to 122°F (0° to 50°C)

Summary

CALIBRATION PROCEDURES

Proc_Cal_001: Service Password Entry

Secures access to service menus, allowing calibration procedures to be performed.

Proc_Cal_002: Hydraulic Valve Calibration Warm Up and Air Bleed

Ensures proper fluid temperature and removes air from hydraulic systems before calibration.

Proc_Cal_003: Save and Exit

Saves calibration results and exits the calibration menu, ensuring changes are retained.

Proc_Cal_004: Lift Valve Output Threshold

Determines the 'cracking' current for the lift valve, affecting flow initiation.

Proc_Cal_005: Lower Valve Output Threshold

Determines the 'cracking' current for the lower valve, affecting flow initiation.

Proc_Cal_006: Tilt Back Valve Output Threshold

Determines the 'cracking' current for the tilt back valve, affecting flow initiation.

Proc_Cal_007: Tilt Forward Valve Output Threshold

Determines the 'cracking' current for the tilt forward valve, affecting flow initiation.

Proc_Cal_014: Load Weight Zero Point

Sets the zero point for weight display, accounting for carriage assembly weight.

Proc_Cal_015: Loaded Weight Calibration

Calibrates the system for accurate weight readings when lifting known loads.

Proc_Cal_016: Transmission Valve Calibration

Compensates for clutch pack control valve pressure for proper transmission operation.

Proc_Cal_019: Mazda LP and Gas Accelerator Pedal Adjustment

Adjusts throttle assembly lost motion for proper clutch pack braking and inching.

Proc_Cal_025: Hydraulic Valve Pressure Gage Installation

Installs a pressure gauge to enable the use of the pressure method for calibrations.

Proc_Cal_026: Travel Speed Calibration

Ensures accurate travel speed information for advanced transmission control functions.

SAFETY PRECAUTIONS MAINTENANCE AND REPAIR

Description of Calibration Procedures

How to Read Calibration Procedure

Explains the methodology and symbols used in calibration procedures detailed in the manual.