User manual MTD OEM-190-833

[. . . ] Make certain all parts and literature are removed before the carton is discarded. Lay out all parts according to the illustration below. CARTON CONTENTS A B C D E 2 1 1 1 1 Frame Brackets Upper Lift Handle Lower Lift Handle Assembly Blade Assembly R. H. Hitch Bracket A F G H I J 1 2 1 1 1 L. H. Hitch Bracket Angle Brackets Pivot Support Bracket Channel Pivot Pin Angle Lock Bar (Long) K L M N O 1 1 1 1 1 Angle Lock Bar (Short) Channel Assembly Pivot Shaft Spring Mount Rod Blade Adjust Spring B C D J K F G L I H N O E M 2 SHOWN FULL SIZE A B C D E F G L K J I H M N O P S R T Q NOT SHOWN FULL SIZE U V W X Y CONTENTS OF HARDWARE PACK Key Qty A B C D E F G H I J K L M 1 1 8 6 2 2 2 3 6 1 4 8 4 Description Hex Bolt, 3/8" x 3-1/2" Hex Bolt, 1/4" x 3-1/4" Hex Bolt, 3/8" x 1" Lg. [. . . ] Insert the angle lock bars down through the slot in the channel. Underneath the channel place spacers on both sides of the angle lock bars and insert a 1/4" x 3-1/4" hex bolt through the sides of the channel, the spacers and the angle lock bars. Secure the bolt with a 1/4" hex lock nut, tightening so that the angle lock bars still pivot freely. Insert the 3/8" x 3-1/2" hex bolt through the angle lock spring. Assemble a 3/8" hex nut about 1" onto the end of the bolt. See figure 6. 3/8" HEX NUT PIVOT PLATE CHANNEL 1/4" HEX LOCK NUT BRACKET (A) BLADE ADJUST SPRING ANGLE LOCK SPRING 3/8" x 3-1/2" HEX BOLT 1" SPACERS (2) 1/4" x 3-1/4" HEX BOLT Figure 6 Figure 4 5 16. To attach the channel assembly to the blade, align the pivot plate between the welded brackets on the back of the blade. Insert the pivot shaft through the holes in the pivot plate and the welded brackets. Secure the pivot shaft with two 1/8" hair cotter pins. Hook the blade adjust spring over the spring mount rod as shown. Insert the bolt through the hole at the top of the blade and assemble the 3/8" flat washer and the knob onto the bolt. Place the plastic cap over the end of the bolt. NOTE: The blade is now set at the lowest spring tension. To adjust the tension see the Adjustments section. 1/8" HAIR COTTER PIN BLADE ADJUST SPRING PLASTIC CAP KNOB PIVOT SHAFT 3/8" FLAT WASHER 3/8" x 3-1/2" HEX BOLT 3/8" HEX NUT SPRING MOUNT ROD PIVOT PLATE BLADE 19. hitch brackets to the angle support brackets using four 3/8" x 1" hex bolts and 3/8" flanged nuts. See figure 9. 3/8" FLANGED NUT 3/8" x 1" HEX BOLT Figure 9 HAIRPIN CLIP Figure 7 20. Attach the channel assembly to the tractor by placing the end of the channel inside the pivot support bracket. Assemble the 1/2" flat washer onto the channel pivot pin and insert the pin through the holes in the pivot support bracket and the channel. Secure with a 3/32" hair cotter pin. See figure 10. PIVOT SUPPORT BRACKET 18. [. . . ] To increase the spring tension loosen the knob, screw the nut farther down onto the bolt and then retighten the knob. To decrease the spring tension loosen the knob, screw the nut farther out toward the end of the bolt and then retighten the knob. Refer to figure 8 on page 6. To Adjust Skid Shoes The skid shoes at the ends of blade may be raised for close work on smooth surfaces or lowered to raise the blade to work on rough or uneven areas. Make sure both shoes are set evenly and that the nuts are retightened securely. Figure 15 CAUTION: Know the terrain. [. . . ]