
Lit. No. 49583, Rev. 02
13
June 1, 2016
BLADE DROP SPEED ADJUSTMENT
The quill in the top of the valve manifold on the
passenger-side front corner of the hydraulic unit
adjusts the blade drop speed.
1. Move the driver-side lift chain from the lift arm
hook to the cable boot bracket on the side of the
upper lift frame.
2. Remove and retain the two hairpin cotters,
washers and pins attaching the lift arm to the lift
frame.
OPERATIONAL TESTS AND FINAL ADJUSTMENTS
WARNING
Keep 8' clear of the blade when it is being
raised, lowered or angled. Do not stand
between the vehicle and blade or directly in
front of the blade. If the blade hits or drops on
you, you could be seriously injured.
3. Pivot the lift arm and lift ram forward and remove
the hydraulic unit cover.
4. Replace the two clevis pins, washers and hairpin
cotters to reattach the lift arm to the lift frame.
5.
Turn the quill IN (clockwise) to decrease drop
speed.
Turn the quill OUT (counterclockwise) to increase
drop speed.
6. Stand 8' clear of the blade when checking the
adjustment.
7. Remove and retain the two hairpin cotters,
washers and pins attaching the lift arm to the lift
frame.
8. Replace the hydraulic unit cover. Pivot the lift arm
and lift ram up.
9. Replace the two clevis pins, washers and hairpin
cotters to reattach the lift arm to the lift frame.
10. Move the driver-side lift chain back to the lift arm
hook.
Quill
Move chain
to here