Instrument Panel - Elect. Cont. Earlier Engines Bump Speed Enable Rocker Switch This is a three-position switch (O) with the center position as (locked). With this switch in the position, the speed select switch (P) is also locked, to prevent accidental changes in operating speed. Pressing upper or lower half of switch (O) will unlock or enable the bump speed switch to take effect using speed select switch (P). Speed Select Rocker Switch The speed select switch (P) is used to bump engine speed up (+) or down (-) in small increments during operation. This switch must be used with the bump speed enable switch (O) in the unlocked position (top or bottom half of button depressed).
How To Select Preset Operating Speeds (Bump Speeds) First select slow or fast speed option by pressing high-low speed select switch (N) to “turtle” (slow) or “rabbit” (fast). Then you can press either the upper or lower portion of the bump speed enable switch (O) to unlock the high or low setting. The bump speed enable must be held down as the speed select switch (P) is used to change the high or low setting by pressing (+) to increase speed or (-) to decrease speed. Once the slow idle speed has been set, the bump speed enable switch must be pressed and released three times within two seconds to commit the new operating speed to memory.
If not done, the engine’s new speed will only be effective until the key switch is shut off. Then the speed will revert back to the previous setting. RG11169 –UN–01NOV00 The fast idle speed cannot be locked into memory. It will always go back to the factory preset fast idle speed. Instrument Panel For Earlier Engines Fuse Holder The fuse holder (Q) contains a 5-amp fuse for power to the instrument panel. Continued on next page OURGP11,000027A –19–25NOV03–5/7 16-5 021604 PN=51