Usage:
914G (7ZM600-Up, 9WM1299-Up) Wheel Loaders;
IT14G (8ZM500-Up, 1WN899-Up) Integrated Toolcarriers
Reference: Service Manual Module, RENR2810; System Operation and Testing, IT14G Integrated Toolcarrier and 914G Wheel Loader Braking System.
Reference: Service Manual Module, RENR2809; Specifications, IT14G Integrated Toolcarrier and 914G Wheel Loader Braking System.
A new brake system is now standard production for all 914G and IT14G machines. The new brake system is now fully hydraulic providing reduced pedal effort and improved inching modulation. The fully hydraulic brake system eliminates mechanical linkages which reduces the need for periodic adjustment.
With the new fully hydraulic brake system, changes were made to the axle brake groups. These changes include the addition of retraction springs to prevent possible brake drag.
Included with the brake system change, all 914G and IT14G machines are now equipped with brakes in both axles. Prior to this change, the standard speed 914G and IT14G had brakes only in the front axles.
This change is effective with the following machines: 914G STD (7ZM600-Up), 914G SPDR (9WM1299-Up), IT14G STD (8ZM500-Up), and IT14G SPDR (1WN899-Up).
NOTE: This change is not adaptable to any of the previous machines.
SERVICE REPAIR PARTS: A new 148-2573 Lines Group Accumulator has been released effective with this change. This group contains a 152-1110 Manifold Assembly and a 156-5314 Valve Group. Service Repair Parts are listed in the following charts:
A new 148-2578 Accumulator Group has been released effective with this change. This group contains two 149-5533 Accumulators. Service Repair Parts are listed in the following chart:
A new 147-8607 Brake Control Group has been released effective with this change. This group contains a new 149-4139 Brake Valve. Service Repair Parts are listed in the following chart:
NEW AXLE NUMBERS: The new axle numbers that are effective with Full Hydraulic Brakes are provided in the following chart:
