OM3006.2 04/98 Operation - Section 3 Operator Cab and Controls Page 3-19 Parking Brake Switch (6, Figure 3-4) L.H. Window Control Switch (8, Figure 3-4) When this switch is in the ‘‘On’’ position, the parking brake is applied. This control switch is spring-loaded to the center, ‘‘OFF’’, position. Pushing the front of the switch raises the left side cab window. Pushing the rear of the switch lowers the window. When this switch is in the ‘‘Off’’ position, the parking brake is released. The Parking Brake is spring applied and hydraulically released. It will hold a stationary truck when the engine is stopped and the keyswitch is in the ‘‘Off’’ position. R.H.
Window Control Switch (9, Figure 3-4) DO NOT apply the parking brake while the truck is in motion. Damage to the Park Brake components may occur. This control switch is spring-loaded to the center, ‘‘OFF’’, position. Pushing the front of the switch raises the right side cab window. Pushing the rear of the switch lowers the window. When the keyswitch is ‘‘On’’ and the Parking Brake Switch is applied, an indicator light in the L.H. panel pod will illuminate. Brake Lock Switch (7, Figure 3-4) Ash Tray (10, Figure 3-4) When this switch is in the ‘‘On’’ position, the Brake Lock is applied. The Ash Tray is used for extinguishing and depositing smoking materials.
DO NOT use for flammable materi- als, such as paper wrappers, etc. Be certain that all fire ash is extinguished ! When this switch is in the ‘‘Off’’ position, the Brake Lock is released. The Brake Lock should be used with engine running for dumping and loading operations only. The brake lock switch actuates the hydraulic brake system which locks the rear wheel service brakes only . Lighter (11, Figure 3-4) The LIGHTER may be used for lighting cigars/ciga- rettes. Always use CAUTION with smoking materials!. When pulling into shovel or dump area, select a loading area with as level a surface as possible.
When truck is completely stopped and in loading position, apply the brake lock by pressing the rocker switch toward the ‘‘On’’ symbol. To release, press the rocker switch to- ward the ‘‘Off’’symbol. This socket may also be used for a 12 VDC power supply. Passenger Seat w/Safety Belt (12 & 13, Figure 3-4) The Passenger Seat (13) is mounted on top of the right hand portion of the Center Console structure. Use at shovel and dump only to hold truck truck in position. Any passenger riding in the truck, must use the seat belt (12) whenever the truck is being operated. Do not use this switch to stop truck, unless foot- operated brake valve is inoperative.
Use of this switch applies rear oil disc service brakes at full, unmodulated pressure! The area beneath the passenger seat provides a cabi- net for various 24 VDC electrical components. Consult the Service Manual for service involving any of these components. Do not use brake lock for parking. With engine stopped, hydraulic pressure will bleed down, al- lowing brakes to release!