OPERATIONS OF CONTROLS AND GAUGES
THROTTLE CONTROL (See Figures 10 & 10a)
The throttle control is located on the left side console. Gas and LP equipment have a throttle switch (A). Diesel versions have a lever (B). Both have 3 throttle
speed positions - IDLE, 1, and 2. To operate the diesel, grasp the lever and push up and right to desired locking notch. To reduce to idle, grasp the lever and push
up and to the left (away from both locking notches). Let the lever lower until it rests at the bottom of the slot. For the Gas/LP switch, the bottom position is idle, the
top position is top RPMs (2450 "no load"), and the middle is lower speed (2050 "no load" RPMs). "Load" (brooms and/or brushes and/or dust control operating)
and "No Load" (brooms, brushes & dust control off) RPMs are the same for gas and LP equipment; there will be a slight drop between "Load" and "No Load" RPMs
with diesels. Always return the throttle lever to the idle position before turning off the key to stop the engine.
CHECK ENGINE LIGHT (Gas, LP Only) (See Figure 10a)
The check engine light (MIL) (C) is located on the left side console. If the light comes on, it indicates a problem with the engine. Go to the GM Engine Service
Manual, Section 7, for directions on how to diagnose the problem.
LEFT SIDE BROOM LIFT AND POWER CONTROL (OPTION) (See Figure 10)
The left side broom lift control (V) is located on the left side of the instrument panel. To raise and stop the side broom, grasp the lever and push the lever to the
locking notch with the "UP" mark. To lower the side broom, grasp the lever and push it up to the right away from the locking notch. Let the lever lower until it rests
by the "DOWN" mark. To turn "ON" the side brooms, move the Hopper Lift/Side Broom Lever (R) FIGURE 9 forward to the "ON" position.
MAIN BROOM LIFT (See Figure 10)
The main broom lift control (W) is located to the left of the driver's seat. To lower the main broom, grasp the lever and push up and to the left to clear the locking
notch. Move the lever down to the fi rst or second notch in the elongated slot. The fi rst notch, "SWEEP", is for normal sweeper (2 to 3 in. or 5 to 8 cm. broom
pattern). The second notch, "FLOAT", is for heavy sweeping (4 to 5 in. or 10 to 13 cm. broom pattern), To raise the main broom, push the lever up and slide into
the locking notch in the "UP" position. You may operate the main broom in either the "SWEEP" or "FLOAT" position. However, the "SWEEP" position should be
used for normal sweeping and will result in increased broom life. The "FLOAT" position should be used only when sweeping in extremely uneven areas.
Engine
Speeds
Gas/LP
1st
2nd
Diesel
1st
2nd
FIGURE 10
RPMs
IDLE
"NO LOAD"
950
2050
950
2450
950
2150
950
2550
FIGURE 10A
FORM NO. 56041727 - 4366XP - A-11
ENGLISH / A-11