Koyker GRAPPLE FORK Series User manual
IMPORTANT-KOYKER DEALER
BE SURE THIS MANUAL IS GIVEN TO THE
PURCHASER FOR FUTURE REFERENCE
Koyker Manu acturing Co., P.O. Box 409, Lennox, SD 57039
Phone: 1-800-456-1107, Email: koyker@koykerm g.com
Website: koykerm g.com
OWNERS MANUAL
Manual No: #682858 2/19/19
GRAPPLE
FORK’S
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TORQUE SPECIFICATIONS
Torque Specifications ........................................................................................................................... 22
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BUCKET TEETH
TOOTH POSITION WITHOUT
BUCKET TEETH
Use this page if you are fitting a Grapple Fork onto a 310-345-400-600-510-565-545-645
Loader.
INSTALLATION NOTES:
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78,"the two 66” hoses to the oil lines on the back of the bucket. Install the quick couplers to the
end of the hose. Use the hose wrap provided to secure the hoses together. Finally remove the port plugs
from the cylinder ports, and install the four 22” hoses from the cylinder to the ends of the oil lines . (See
the hydraulic schematic for proper connections.) "67
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ITEM NO. PART NO. DESCRIPTION QTY.
1 661569 Frame Strap 2
2 658589 18" Hydraulic Hose 2
3 668814 Main Frame 1
4 665800 RH Grapple Mast 1
5 665801 LH Grapple Mast 1
6 679699 Grapple Fork Tooth 4
7 675386 2 3/4" Cylinder 2
8 659771 Grapple Fork Oil Line 2
9 659772 Grapple Line Cover 1
10 660093 66" Hydraulic Hose 2
11 658139 Reinforcement Plate 2
12 680356 Grapple Fork Tooth Reinforcement Bracket 3
13 670518 20" Hydraulic Hose 2
#565 Hardware Bag
14 640021 HH Cap Screw - 5/16" x 2 1/4" 4
15 640038 HH Cap Screw - 3/8" x 2 1/4" 8
16 640066 HH Cap Screw - 1/2" x 3" 6
17 640071 HH Cap Screw - 1/2" x 5 1/2" 4
18 640080 Carriage Bolt - 5/8" x 2" 4
19 640980 HH Cap Screw - 3/4" x 2 1/2" 8
20 640157 Lock Washer - 1/2" 14
21 640159 Lock Washer - 5/8" 4
22 640162 Lock Washer - 3/4" 8
23 640127 Hex Nut - 1/4" 4
24 640139 Hex Nut - 1/2" 10
25 640142 Hex Nut - 5/8" 4
26 640146 Hex Nut - 3/4" 8
27 640126 Lock Nut - 1/4" 2
28 640128 Lock Nut - 5/16" 4
29 657199 Pivot Pin 2
30 660369 Pivot Pin 2
31 655181 Stud - 1/4' x 2 1/2" 4
32 660194 Oil Line Clamp 4
33 661016 Oil Insulator 2
34 666943 Warning Decal 2
35 666942 Warning Decal 1
36 660836 Spacer 2
37 657632 Grease Zerk 4
38 659674 24" Hose Wrap 1
39 640150 Flat Washer - 1/4" 2
40 676093 Restrictor - 8MJX-8FJX 2
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ITEM NO. PART NO. DESCRIPTION QTY.
41 680358 Grapple Spacer 4
42 640039 HH Cap Screw - 3/8" x 2 1/2" 8
43 640154 Flat Washer - 3/8" 32
44 654121 Nylon Hex Nut - 3/8" 16
45 673780 8ORM Quick Coupler Set 1
46 673961 Fitting - Hyd Plug Set # 8 Black 1
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Parts available in kit only.
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2 3/4" CYLINDER PARTS LIST:
ITEM NO. PART NO. DESCRIPTION QTY.
1 675388 Tube Weldment 1
2 661017 Locknut 1
3 672904 Piston Assembly 1
4 640301 "O" Ring Seal 1
5 672903 Gland Assembly 1
6 658275 Rod Weldment 1
672928 Seal Kit 1
GRAPPLE CYLINDER (675386)
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O-RING
EZ SQUEEZE SEAL
ROD WIPER
BACK UP
GLAND
SECTION VIEW
ASSEMBLED GLAND
SECTION VIEW
ASSEMBLED PISTON
EZ SQUEEZE SEAL
PISTON
EZ SQUEEZE SEAL
O-RING
ROD WIPER
BACK UP
GLAND
EZ SQUEEZE SEAL
O-RING
O-RING
EZ SQUEEZE SEAL
PISTON
EZ SQUEEZE SEAL
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