FIGURE 1

1A. KNOB: Use to tighten operator grip handles.

1B. HANDLE BARS: For operator gripping. DO NOT use to lift the saw. (Same as 6G)

1C. HOUR METER: Records engine hours of operation.

1D. ----

1E. WATER TEMPERATURE GAUGE: Water/Glycol is the coolant. Monitors the engine coolant temperature. Maximum Safe temperature is 220° F.

1F. ENGINE THROTTLE: Controls Engine RPM. Push Red Button to unlock. Push in to decrease RPM. Pull out to increase RPM. Or Turn Clockwise to increase RPM. Turn counterclockwise to decrease RPM.

1G. TACHOMETER: Displays engine speed (RPM, n/min), or blade shaft speed (RPM, n/min) if equipped with TACHOMETER SELECT SWITCH (1Z), else displays only engine speed (RPM, n/ min). Select TACHOMETER display by moving TACHOMETER SELECT SWITCH (1Z) to desired position (If equipped). Three-speed gearbox models have color bands (green, yellow, and orange), displayed around outside of tachometer, that relate GEARBOX SHIFT LEVER (3-2O) position (1, 2, or 3) and maximum blade diameter (inches only). Rotational speed (RPM, n/min) of DIAMOND BLADE (2E) should remain in the proper color band during operation.

WARNING: Take Notice of TACHOMETER SELECT SWITCH (1Z) position! Tachometer can indicate Blade Speed or Engine Speed.

Serious injury can occur to the operator or people in the work area if the rotational speed (n/min) of the DIAMOND BLADE (2E) exceeds the maximum speed (n/min) marked on the DIAMOND BLADE (2E).

1H. ENGINE START SWITCH: Start and stop the engine using this switch. Also preheats engine when pressed inward.

1I. VOLTAGE GAUGE: Shows the voltage of the electrical system.

1J. AXLE ADJUSTMENT SWITCH or DIFFERENTIAL SWITCH: AXLE ADJUSTMENT SWITCH (Front Pivot Model Only): Toggle switch to adjust rear drive axle. Push switch right to make saw drive to the right. Left to make saw drive to the left. DIFFERENTIAL SWITCH (Rear Pivot Model Only): Three Positions to control Pivot or Straight or Neutral Mode. Toggle switch to LEFT for Pivot Mode. Allows saw to be pivoted on its rear wheels. Toggle switch to CENTER for Straight Mode. Allows saw movement in a straight line. Toggle switch to RIGHT position (Must be held in position). Saw must have engine OFF, and ENGINE START SWITCH (1H) in the OFF (“0”) position. Puts saw in “Neutral” and allows pushing the machine.

1K. RED PALM SWITCH: For EMERGENCY STOP of the saw. Stops all systems except lights, pull OUT to reset. Do not use for routine stopping.

1L. WATER SAFETY SWITCH: Stops engine if water supply to blade is interrupted. Set to activate switch.

1M. BLADE DEPTH STOP SWITCH: Activates or overrides depth stop for repetitive cuts at same depth.

1N. AIR RESTRICTION INDICATOR: Service air filter elements when indicator shows a red mark. Reset before starting engine.

1O. SPEED CONTROL LEVER: Controls forward and

reverse directions, stop, and speed of saw.

1P. RAISE/LOWER TOGGLE SWITCH: Located on speed control lever. Use to raise and lower saw. Push up to raise saw upward. Push down to lower saw.

1Q. BLADE DEPTH INDICATOR: Displays cutting depth. Sets cutting depth for BLADE DEPTH STOP SWITCH (1M).

1R. HANDLE ADJUSTMENT LOCK: Turn Clockwise to lock handle bar in position. Turn Counterclockwise to unlock and reposition handlebar.

1S. WATER INLET: Connects to 3/4” garden hose for fresh water supply.

1T. WATER VALVE: Controls water flow rate to cool the blade.

1U. SAW LOWERING SPEED CONTROL KNOB:

Turn knob clockwise to slow lowering speed. Turn knob counterclockwise to increase lowering speed. Access Knob through rear of machine.

1V. BLADE CLUTCH SWITCH (If Equipped): Engages Blades Drive. Engage only with engine RPM at

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Husqvarna FS4800D manuel dutilisation 1U. SAW Lowering Speed Control Knob