Scrapers; Wheel Bearings - Grizzly Field Boss Folding Wing Manual

12 Lubrication and Maintenance

12:6 Scrapers

Check the scrapers regularly, the scrapers
should move freely from the spool to 12mm
away, The side movement should be kept to a
minimum by tightening the scraper pivot bolt.
Don't overtighten the pivot bolt, this will lock
the scraper, this will result in the scraper not
functioning correctly. To adjust the scraper
loosen the lock nut at the top of the scraper,
adjust the adjuster bolt as required , to
achieve 8mm - 12mm cleatance between the
scraper and spool, tighten the lock nut.
IMPORTANT!
Having a gap of over 12mm may
cause damage to the gang beam
and adjuster bolt. Ensure correct
gap is maintained.
June 2018
12:7 Tyres
Check the tyre pressure.
Uneven tyre pressure can cause the machine
to plough unevenly. See Section 8.
Specifications are subject to change without prior notification

12:8 Wheel Bearings

Check wheel bearings, with the wheels in the
air spin the wheel, check for bearing noise,
heat, and movement in the bearing. If there is
excessive movement the bearing will need to
be adjusted.
To adjust the wheel bearing preload.
1. Raise the wheels (using hydraulics).
2. Remove the cap screws from the cap and
remove the cap from the hub.
3. Remove the cotter pin.
4. Tighten the nut while turning the hub.
When there is a tight bind on the bearing,
the parts are seated correctly, approx
150ft/lbs.
5. Back the nut off 1/6 to 1/4 of a turn or
sufficiently to allow .005mm to .02mm end
play.
Note: Failure to back off adjusting nut
could cause bearing to run hot and fail.
6. Replace the cotter pin.
7. Replace the cap (use flange sealant).
41