Great Plains 30-Foot 3-Section Vintage Drill User Manual
Page 7
4/8/04
1-5
113-368M
SINGLE FLAT FOLD MARKER HYDRAULIC ASSEMBLY INSTRUCTIONS
Refer to Fig. 1 as reference for the following instructions:
1.
Attach fittings (#1) & (#2) to cylinder ports.
2.
Attach the needle valve (#3) and hoses to the cylinder fittings.
3.
Bolt selector valve (#4) to the selector valve mount on T-Frame with 3/8" x 3" long bolts (#5),
flat washers (#6) lock washer (#7) and nut (#8).
4.
Route hydraulic hoses (#9) and (#10) from the fold hydraulic cylinders and marker hydraulic cyl
-
inders hoses (#11) and (#12) to the selector valve.
5.
Route hydraulic hoses (#13) and (#14) from tractor, through the drill tongue to selector valve.
6.
Secure with plastic tie (#15) straps to prevent kinking and pinching during folding operations.
IMPORTANT! BEFORE FOLDING THE MARKER, BLEED ALL THE AIR OUT OF THE HYDRAU-
LIC SYSTEM.
7.
To bleed the air out of the hydraulic system, refer to page
8.
Adjust the speed of the marker with the needle valve to a low setting. Fold the marker up and
down a few times and recheck for pinching and kinking of hoses. Reset folding speed with the needle
valve to a safe speed.
Fig. 1
10060