Operation - Section 3 OM3006.2 04/98 Page 3-18 Operator Cab and Controls Transmission Range Selector (2, Figure 3-4) Control Switches (3, 4, 6, & 7, Figure 3-4) The Transmission Range Selector is mounted to the right of the operator’s seat. These switches are simple ‘‘Rocker-type’’ switches which turn functions ‘‘On’’ and ‘‘Off’’. The Transmission Range Selector has seven positions (R, N, D, 5, 4, 3, and L). When moving the range selector lever from ‘‘N’’ to ‘‘R’’, or from ‘‘D’’ to 5, press the lock button on the end of the handle before moving the selector lever. "ON" "OFF" The ‘‘On’’ and ‘‘Off’’ positions are maked with these symbols.
‘‘R’’ - REVERSE position - is used to move the truck backwards. Bring truck to a complete stop before shifting from DRIVE to REVERSE or vice-versa. The Reverse Warning Horn is activated when REVERSE position is selected. Shift Limiter Switch (3, Figure 3-4) ‘‘N’’ - NEUTRAL position - is used when starting the engine, during loading operations and parking the truck with engine running. The truck cannot be started unless the range selector is in the ‘‘N’’ - NEUTRAL position. This switch is used to limit the highest speed range when the transmission shift lever is in ‘‘D’’ or ‘‘L’’ Ranges.
‘‘D’’ - DRIVE position - When starting from a stopped position, the transmission will shift automatically to second gear. As the truck ground speed increases, the transmission will automatically upshift through each gear to seventh gear operation. As the truck ground speed slows down, the transmission will automatically down shift to the correct gear for grade/load/engine conditions. ‘‘5, 4, 3" positions - Road and load conditions some- times make it desirable to limit the automatic up-shift- ing to a lower range. These positions provide more effective retarding on grades.
When the range selector is placed in any one of these positions, the transmis- sion will not shift above the highest gear range se- lected. It will also down-shift to first range when required by grade/load/engine conditions. F1 Start Switch (4, Figure 3-4) This switch is used to electrically assure that the transmission always starts in ‘‘F1". When this switch is ’’On" and the transmission range selector is moved to a ‘‘Forward’’ range position, the transmis- sion will shift to ‘‘F1" to start, regardless of the selector position. When conditions permit, select position ‘‘D’’ for normal operation.
‘‘L’’ - LOW position - Use this range position when maneuvering in tight spaces and when pulling through mud or deep snow. Use this range position also when driving up and down steep grades where maximum driving power or maximum retarding is required. Hoist Control Lever (5, Figure 3-4) The hoist control is a four-function, three-position, hand-operated lever located between the operator seat and the Center Console. Refer to ‘‘OPERATING INSTRUCTIONS, DUMPING’’ for more complete details concerning this control. On/Off Range Range(s) Attainable On ‘‘D’’ Range - F2 -- F6 ‘‘L’’ Range - F1 Off ‘‘D’’ Range - F2 -- F7 ‘‘L’’ Range - F1 -- F2