ADJUSTMENTS
Detent
NOTE The following detent adjustment applies primar-
ily to the Flexair valves used for drum clutch
controls; however, this adjustment can be made
to any Flexair valve used on the crane.
The detent force may be varied as desired, but excessive
force should be avoided to keep wear on the detent lugs
and latch to a minimum.
Turn the detent adjusting collar (Figure 3) either
CLOCKWISE to INCREASE the detent force or COUN-
TERCLOCKWISE to DECREASE the detent force.
The minimum recommended force to move the lever out
of the detent is 5 pounds as shown in Figure 3.
, Handle Free Play
. As the setscrews in the handle lever and the pressure
',i adjusting caps wear, the resulting free play in handle
travel may preVent the valve from delivering full air
p~essur e. '.
If this happens, disassemble the unit (500 hour mainte-
nance steps 1 through 5) and proceed as follows:
1. Hold the handle lever vertical with relation to the valve
housing.
2. Turn the setscrews (2 or 3 provided) down until there
is 0.001-0.003 inch clearance between each setscrew
and pressure adjusting cap.
3. Tighten the jam nut on each setscrew against the
handle lever to hold the adjustment.
IMPORTANT Do not turn setscrews down tO point that
pressure adjusting caps are pushed down; otherwise,
i; control val.ve will leak air into control system when han-
dle is in, OFF position.
Figure
3 Detent Adjustment
Figure
2 Detent Latch and Cover
FOLIO
905-2
395143
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