Section 1: Assembly & Set-up
5/24/19
DB2660 & DBM2660 Ditch Bank Rotary Cutter 316-317M
23
Purge Hydraulic Cylinders
Purge hydraulic cylinder of air if the cylinder is operating
spongy or jerky.
1.
Set tractor control lever for the cylinder in center
detent position.
2.
Cycle the hydraulic cylinder by extending and
retracting the cylinder several times to purge air from
the hydraulic system.
3.
If cylinder continues to not operate properly, loosen
elbow fitting at the rod end of the hydraulic cylinder.
4.
Slowly retract and extend the hydraulic cylinder until
all trapped air is purged from the fitting.
5.
Tighten elbow fitting to the cylinder.
6.
Loosen elbow fitting from the base end of the
hydraulic cylinder.
7.
Slowly retract and extend hydraulic cylinder until all
trapped air is purged from the fitting.
8.
Tighten elbow fitting to the cylinder.
9.
Clean oil spills around the cylinder fittings and
equipment.
10. Recheck tractor hydraulic oil level. If needed add oil
to the tractor reservoir. Refer to your tractor
Operator’s Manual for detail instructions.
Power Take-off Mounted Gearbox and Pump Hook-up
Figure 1-12
37298
37293
Speed Increaser Hook-up (Optional)
Refer to Figure 1-12:
1.
Pull back on locking collar (#6) and slide spline bore
of speed increaser over tractor power take-off shaft.
2.
Release locking collar (#6) and continue to push
speed increaser onto the power take-off shaft until
locking collar snaps in place.
3.
Push/pull on speed increaser/pump to be sure it is
securely fastened to the tractor power take-off shaft.
4.
Keep speed increaser/pump mounting plate (#1)
vertical. Wrap chain (#2) around a stable non-
moving component such as the drawbar.
Do Not
attach chain to hydraulic lines or hoses.
5.
Hook S-hook (#3) in one of the chain links and crimp
to keep chain from coming loose.
6.
Check S-hook (#3), bolt (#4), and mounting
bolts (#5) to make sure they are secured. Tighten
any bolts or nuts that are loose.
IMPORTANT:
The chain (#2) should be fastened
vertically downward without slack and angled
slightly forward of bolt (#4) (toward the tractor) to
avoid putting an end thrust on the gearbox.