ryan 544915, Руководство по запасным частям и обслуживанию

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ADJUSTMENTS 4
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4 ADJUSTMENTS
4.1 GENERAL ________________________________________________________________
1. Adjustments and maintenance should always be
performed by a qualified technician. If proper
adjustment cannot be made, contact an authorized
Jacobsen Dealer.
2. Replace, do not adjust, worn or damaged
components.
3. Long hair, jewelry or loose fitting clothing may get
tangled in moving parts.
4. Do not change governor settings or overspeed the
engine
4.2 DRIVE BELT ADJUSTMENT _________________________________________________
Inspect and adjust new belt after first 50 hours of
operation. Check and adjust annually thereafter.
1. Position the driven belt pulley (Part No. 522890) 1/8”
- 3/16” (3.5 - 4.8 mm) away from the aerator frame.
2. Adjust the driver pulley (Part No. 521680) to align
with the driven pulley within 1/16” (1.6 mm).
3. Adjust all belt guides to within 1/16” - 3/16” (1.6 -
3.5 mm) of gap from belt.
4. The belt stop (Part No. 547547) should be
positioned below the belt.
5. A 1/8” - 3/16” (3.5 - 4.8 mm) gap must be left
between the threaded ends of the belt guide and all
return linkage.
6. Check to make sure the head mechanism fully
disengages when head is in the raised position.
4.3 BRAKE ADJUSTMENT______________________________________________________
1. Position the brake cam (Part No. 540039) so the
brake buttons (Part No. 523203) are located in the
bottom of the cam groove surface.
2. Locate the 3/8 - 16 centerlock nut (Part No. 800292)
at the caliper pivot point. This nut is used to retain
the calipers but must have clearance to allow
pivoting action. Adjust the nut to 1/16 turn short of
being tight.
3. Adjust the brake rod (Part No. 523202) and clevis
(Part No. 827498) with the return spring (Part No.
817613) installed, to the correct length which will
allow the bellcrank to be connected to the rotary
cam.
4. Adjust the caliper by using the two (2) 1/2 - 13 nuts
(Part No. 548051) until the calipers allow the 38
tooth sprocket (Part No. 522856) on the differential
to rotate freely.
5. Adjust the calipers to allow 1/2” ± 1/8” (13 mm ± 3.5
mm) of brake pedal travel before the calipers
engage firmly against the sprocket. Secure the two
(2) 1/2 - 13 nuts to maintain the adjustment.
6. Check to make sure brakes work properly when
applied.
WARNING
To prevent injury, lower implements to the ground,
disengage all drives, engage parking brake, stop
engine and remove key from ignition switch before
making any adjustments or performing maintenance.
Make sure the aerator is parked on a solid and level
surface. Never work on a aerator that is supported
only by the jack. Always use jack stands.
If only the front or rear of the aerator is raised, place
chocks in front of and behind the wheels that are not
raised.
!
CAUTION
Be careful to prevent entrapment of the hands and
fingers between moving and fixed components of the
machine.
!