Great Plains CF60 Predelivery Manual - Manual (Page 7)

5
Section 1 Assembly
4/8/04 CF50 and CF60 Hydraulic Cross-Fold Boom 500-015Q
Great Plains Mfg., Inc.
8. Using a forklift or overhead crane, carefully position
the hinge point of left boom wing (15) near the hinge
point of center section (8) of boom.
NOTE: If the boom nozzles are mounted on wings, use the
wing with nozzles mounted on the front and back as the
left wing. Use the wing with nozzles on the back only as
the right wing.
9. Slightly loosen adjustment plate nuts (16) and assem-
ble boom hinge pin (17) to attach boom wing to center
section. Secure hinge pin with snap ring (18).
10. Remove all support of inside boom arm and allow the
hinge to carry the weight. Position the adjustment
plate (19) so there are no gaps between the ball joints
and the hinge tubing on boom wing. This will prevent
boom from sliding to the front and rear. Secure the ad-
justment plate by tightening nuts (16) to 85 foot-
pounds.
11. Level inside boom arm with center section (8) by posi-
tioning the shims (20) on hinge rest until the boom is
level. The bottom tube of inside boom arm should be
parallel to the frame of center section (8). Tighten
shim bolts when finished by supporting inside boom
arm with a forklift.
!
CAUTION!
Be careful not to pinch fingers in hinge. Make sure boom is se-
curely supported before adjusting shims.
12. With inside boom arm supporting its own weight, po-
sition the outside boom arm with a sawhorse so ad-
justment bolt (21) is touching the stop point and the
boom is level and unfolded. Attach outside boom arm
with 5/8-inch pivot pin (22). Secure pivot pin with a
spring pin (23).
13. Level outside boom arm by adding or removing a
washer (24) on the adjustment bolt (21) so outer boom
section is level with inside boom arm. Tighten jam nuts
when finished.
14. Position spring nut (25) so nut is flush with end of the
spring rod (26) for maximum spring adjustment. At-
tach the cable (27) with the 1/2-by-1 3/4-inch bolt and
nut assembled through the hole on the spring rod (26).
Attach other end of cable to outside boom arm with
the 1/2-by-2 1/4-inch bolt and 1/2-inch nut.
15. Release support under outside boom arm and allow
boom to carry its own weight.
16. Tighten the spring nut (25) until spring is compressed
to a length of 10 inches as shown in Figure 1-3. Lock
with second nut.
17. Disconnect the elbow (28) attaching the two hydraulic
hoses together on the hydraulic cylinder. Attach other
loose elbow in the box (29) to the hose (30) and attach
the feed-line hoses (31) to the elbow ends. Route hy-
draulic hoses next to elevator hydraulic hoses through
center of boom. Use cable ties (32) to secure the hos-
es after all hydraulic hoses have been routed.
11937
Figure 1-3
Spring Adjustment
!
WARNING!
Escaping fluid under pressure can penetrate the skin causing
serious injury. Avoid the hazard by relieving pressure before
disconnecting hydraulic lines. Use a piece of paper or card-
board, NOT BODY PARTS, to check for suspected leaks. Wear
protective gloves and safety glasses or goggles when working
with hydraulic systems. If an accident occurs, see a doctor im-
mediately. Any fluid injected into the skin must be surgically re-
moved within a few hours or gangrene may result.
18. Prime the hydraulic cylinder (33) before attaching to
boom wing. Using tractor hydraulics, fully extend cyl-
inder. Then reverse hydraulic flow and retract the cyl-
inders. Make sure the cylinder bottoms out under full
hydraulic pressure. Extend the cylinder once again
and fasten it to boom wing with the pin provided.
!
WARNING!
Bleed hydraulic hoses before trying to fold or unfold boom.
Failure to do so could cause boom to crash causing damage to
boom and potential injury to persons near boom.
19. Repeat steps 8 through 18 for right wing.
20. Reposition Slow Moving Vehicle bracket (34) in center
of boom and fasten with u-bolt.
21. Position a remote nozzle tube (35) and bracket (36) on
each wing. (Mount bracket on front of boom on left
wing and on the rear of boom on the right wing). Use
the 5/16-inch u-bolts and nuts to attach the bracket.
Position bracket but do not tighten nuts.