TM 10-3930-671-24 8.4. Brake & Inching System Type 2 Dual Master Cylinders Brake Pedal & Linkage................................................................................ F-386 Hydraulic Brake & Inching Lines ................................................................. F-387 Inching Troubleshooting Guide ................................................................... F-388 Brake & Inching Pedal Adjustment.............................................................. F-390 Service Brake Adjustment ........................................................................... F-392 Parking Brake Linkage ................................................................................ F-394 This section outlines information for service maintenance of  the  brake  and  inching  system  for  GPX25  E    truck models. NOTE Care must be taken when servicing to be sure to use the correct fluid, as noted. Refer to Section 2.1, Service Specifications. Service Brakes The  service  brakes  are  mounted  externally  on  the  drive axle and may be accessed for servicing by removing  the axle shaft, drive wheel hub and brake drum assembly. Refer to Section 7.6, TA 18 Transaxle. Inching Control System With  Type  2  dual  (2)  master  cylinder  system,  hydraulic inching  is  incorporated  into  only  the  left-hand  pedal,  as noted above. F-385