18
Lit. No. 62639
October 5, 2001
OPERATIONAL TEST AND ADJUSTMENTS
FINAL INSPECTION
1.
Make sure all fasteners and hydraulic and electrical
connections are tight.
2.
Check ram packing nuts for oil leakage. If
excessive leakage is observed, tighten the packing
nut 1/4 turn after you feel the nut contact the
packing.
NOTE: Do not over tighten packing nuts. Over
tightening affects cylinder operation and
shortens the life of the packing. A short period
of normal operation will allow chevron packings
to become saturated, and leakage will normally
stop. A small amount of leakage is necessary to
properly lubricate the cylinder rod.
COUPLING LUG HEIGHT CHECK
1.
Mount plow to vehicle. (See label on back of blade
or Owner’s Manual for mounting instructions.) Add
recommended ballast as found in Selection List.
2.
Lift Plow and move vehicle a minimum of 10 feet.
3.
With the blade on a level surface:
• slack in lift chain
• rear ballast located behind rear wheels
• the center of the coupling holes (hitch pin shaft)
to level surface should measure 9-1/2" to 10-1/2".
To obtain height, both Coupling Lugs and Link Arms
may be turned over to change height 1".
(See Figure 35.)
NOTE: Coupling height must be 9-1/2" minimum
to allow stand to be pinned to frame.
4
. Adjust chain slack with plow mounted to vehicle
and lift channel pushed all the way down. To
adjust, remove chain from hook, straighten chain
and pull tight. Rehook it to the lift channel. After
chain is hooked, it will have the correct amount of
slack for blade “float”. DO NOT remove chain from
lift channel when removing plow from vehicle.
Figure 35
Figure 34
BLADE DROP SPEED ADJUSTMENT
The quill on the bottom rear of the main block valve
adjusts blade drop speed.
(See Figure 34.)
•
Turn the quill IN (clockwise) to decrease drop speed.
•
Turn the quill OUT (counterclockwise) to increase
drop speed.
NOTE: Turning the quill in too far can slow raise
time.
