Ingersoll-Rand FA5T manual Overload Valve Adjustment new style, Checking Overload Valve Setting

3.Rotating adjustment screw counterclockwise will decrease pressure required to activate overload valve.

Overload Valve Adjustment (new style)

(Dwg. MHP2216)

Overload Valve Adjustment (optional feature)

old style

Refer to Dwg. MHP1678 on page 27.

Adjust overload valve by turning adjustment screw located at bottom of valve.

Rotating screw clockwise will increase pressure required to activate shutoff valve.

WARNING

•This adjustment can cause overload device to NOT activate before winch’s safety limit is exceeded. This procedure should only be done by personnel trained in testing and servicing this winch.

Rotating adjustment screw counterclockwise will decrease pressure required to activate shut off valve.

Checking Overload Valve Setting:

1.Attach load line to a load that is calibrated to 150% of the maximum load for which winch is rated. Move control lever to haul-in position. If winch lifts load, adjust screw as described below.

Setting the Overload:

1.Attach load line to a load that is calibrated to 150% of winch rated capacity.

2.When control lever is moved to haul-in position, overload valve should activate shut off valve. Reset emergency stop valve, valve is adjusted.

3.If winch lifts load, lower load. Turn adjustment screw counterclockwise in ¼ turn increments until shut off valve is activated. After each ¼ turn, retest winch.

Overload Valve Adjustment (old style)

(Dwg. MHP1678)

Limit Switch Adjustment (optional feature)

(Dwg. MHP0607)

To set winch maximum wire rope payout limit switch:

1.Remove access plate from top of limit switch.

2.Loosen blue setscrew in center of limit switch, below access cover.

3.Position winch wire rope at desired payout position.

4.Rotate left cam adjustment screw counterclockwise until it fully activates cutoff valve, causing system air to vent. 2¾ turns of the cam adjustment screw are required for each full cam revolution.

5.Hold cam adjustment screw in position (venting air) and tighten blue setscrew to lock cam in place.

6.If required, adjust haul-in limit switch. Test winch set points by operating winch through three complete cycles to ensure consistent limit switch operation within +/- 2 feet (2/3 metre) of set points.

7.Install access cover when final adjustments are complete.

To set winch maximum wire rope haul-in limit switch:

1.Remove access plate from top of limit switch.

2.Loosen red setscrew in center of limit switch, below access cover.

3.Position winch wire rope at desired switch activation position.

4.Rotate right cam adjustment screw clockwise until it fully activates cutoff valve, causing system air to vent. 2¾ turns of cam adjustment screw are required for each full cam revolution.

MHD56037 - Edition 5 27