Trigger And Trip Arm Adjustment; Checking Brake Clearance; Disassembly Of Cut-Off - Textron Jacobsen Ryan 544853C Manual Del Usuario

5 OPERATION & CONTROLS
5.17 TRIGGER AND TRIP ARM
1. Remove access cover on dog wheel assembly, and
open access cover on cut-off unit.
2. If necessary, center trigger (side to side) on cam stop
by adding .015" (.381 mm) shims (Part No. 516237)
onto trigger shaft, between the case and trigger.
Loosen set screw, and slide trigger off the shaft to
allow installation of shims.
3. Trigger must ride squarely on cam surface when
striking cam stop. If it does not, correct by loosening
the set screw on trigger and press down on trigger
until it rests on the cam. Check spring for proper ten-
sion.
NOTE: f the cam stop surface is not square, cam stop
and trigger MUST be replaced.
4. With trigger against cam stop, the cam follower on
trip arm should just touch the dog wheel.
5. When all adjustments are made, re–tighten locking
screw on trigger (See Figure 21) and run clutch
through a few cycles. Determine if the clutch and
brake system is working correctly, if not, additional
adjustment will be required.
TRIGGER
CAM STOP
DOG TRIP
FIGURE 21
5.18

CHECKING BRAKE CLEARANCE

NOTE: As the clutch and brake liner become worn, the
clearance between clutch liner and flywheel and
brake lining and housing, will increase. If there is too
much clearance, the brake will not hold tight enough
and the rollers will run back down the slope of the
cam. The pressure plate will then move back
against the flywheel and cause excessive frictional
wear and heat.
14
ADJUSTMENT
1. Remove belt shield and cut-off blade for easier
2. With the engine running at half throttle or more (cut-
TRIGGER
ADJUSTING
3. After stopping at the end of each cycle, check the
SCREW
SPACER(S)
5.19
The following instructions will assist you in breaking
TRIP ARM
down the cut-off assembly. These instructions are used
to repair or replace a component within the cut-off
assembly.
1. With the engine stopped, manually trip the cut-off by
2. From left side of cut-off, remove belt shield and
Eventually the brake and clutch lining will need to be
replaced. If the thickness of either liner measures
less than .095" (2.4 mm) it is advisable to install new
liners.
access to clutch assembly. With pressure plate in the
locked position (ram is locked into the "UP" position)
draw a pencil mark across the housing and pressure
plate. See Figure 22.
PENCIL
MARK
PRESSURE
PLATE
HOUSING
FIGURE 22
off will not operate properly at low speeds) run the
clutch through several cut-off cycles. NOTE: Manu-
ally rotating the metering wheel, will allow the dog to
trip the cut-off allowing the clutch to operate.
pencil mark on the pressure plate. If the mark has
slipped back 1/8" (3.2 mm) or more, the brake and
clutch clearance will have to be adjusted. Refer to the
following sections on "Disassembly and Assembly."

DISASSEMBLY OF CUT-OFF

!
WARNING
When tripping the cut-off manually with the
metering wheel, BE SURE to keep hands and
feet away from ALL moving parts.
rotating the metering wheel. Remove the cut-off
blade and the dog wheel assembly from unit.
loosen the locking screw and end bolt. Remove cut-
off drive chain and finish removing the locking screw