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Manual de usuario Snapper, modelo 1721301-02

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When cleaning snow from gravel or earth drives or walks, the shoe assemblies should be lowered fully to prevent blade contact with gravel or ground. When cleaning smooth hard surfaces like concrete, the shoe assemblies are normally placed fully up to allow the blade to scrape the surface. To adjust the skid, raise the blade off the ground and block with a piece of wood. Loosen the bolts (B, Figure 3) and move the skid shoes (A) up or down to desired height. Tighten the bolts securely. Figure 3. A. Skid Shoes B. Bolts Spring Tension See Figure 4. This snow plow/dozer blade is spring loaded so that when the blade strikes a solid object, the springs will allow the blade to release as shown, rather than cause damage. The blade will go back to its original position after object is cleared. Figure 4. Dozer Blade “Released” See Figure 5. To adjust spring tension hold rear nut (B) and loosen front nut (E). Tighten rear nut (B) to increase spring tension, or loosen to decrease tension. For initial adjustment, tighten nut (B) on each eyebolt enough to expose about 3/4" (19mm) of thread. Tighten front nut (E) against rear nut (B) to lock adjustment in place. Figure 5. Tension Springs A. Eyebolt D. Pivot Frame B. Nut, 5/16 E. Nut, 5/16 C. Spring 7 Adjustments Lift Rod Adjustment The lift lever can be placed in one of three notches and is held in position by the lever latch. (see Figure 7). When the lever latch is placed in notch 1 the lift lever should be applying downward pressure on the attachment. In position 2, the “float” position, the attachment should experience negligible upward or downward pressure. Position 3 should raise the attachment approximately 6“ above the ground. NOTE: Always adjust the lift height before and after adjusting the downward pressure. LIFT HEIGHT ADJUSTMENT 1. Place the lever latch in notch 3 (see Figure 7). The snowthrower should be approximately 6” off the ground. If not, go to step 2. 2. Lower the attachment and adjust the front set collar (A, Figure 7) to achieve the correct lift height. DOWNWARD PRESSURE ADJUSTMENT IMPORTANT NOTE DO NOT OVER-COMPRESS THE SPRINGS. In addition to providing downward pressure, the springs are an elastic medium that absorbs shocks caused by bumps and cracks in ground surfaces. Over-compressing the springs defeats this and may cause damage to the unit. 1. Move the lever latch from notch 2 to notch 1 (See Figure 7). 2. The spring (C, Figure 6) should be slightly compressed applying downward pressure to the snowthrower. If not, adjust the rear set collar (D, Figure 6) to achieve the desired amount of downward force. Do not over-compress the lift rod spring. D E AB C Figure 6. Adjusting Lift Rod A. Front Set Collar B. Rod Guide C. Spring D. Rear Set Collar E. Spring Clip Notch 1 Notch 2 Notch 3 Figure 7. Lift Lever Quadrant - Side View 8 9 Initial Setup & Assembly Ref Qty Description 1 1 ROD, Control Handle, Upper 2 6 NUT, Hex, 5/16-18 3 2 LOCKWASHER, 5/16 4 4 WASHER, 5/16 5 2 CAPSCREW, 5/16-18 x 1-1/4 6 1 ROD, Control Handle, Lower 7 1 CLEVIS 8 1 WASHER, 1/2 9 1 CLIP, Hair Pin 10 3 COTTER PIN 11 1 ROD & PLATE ASMY, Pivot 12 1 DOZER BLADE ASMY, 42” 13 1 SCRAPER BAR 14 6 CARRIAGE BOLT, 3/8-16 x 1 15 10 LOCKWASHER, 3/8 16 6 NUT, Hex, 3/8-16 17 2 SKID SHOE 18 4 WASHER, Plain, 3/8 19 4 CAPSCREW, 3/8-16 x 3/4 20 2 CAPSCREW, 1/2-13 x 1-1/2 21 2 SPACER, 1/2 ID x 3/4 OD x 5/16 LG 22 1 ROD, Latch Stop Ref Qty Description 23 2 LOCKNUT, 1/2-13 24 1 FRAME ASMY, Dozer 25 2 EYEBOLT 26 2 SPRING, Extension 27 1 CLIP, Hair Pin 28 1 PLATE ASMY, Latch 29 2 SPRING, Torsion 30 1 EYEBOLT, 1/4-20 x 1-1/2 31 1 LOCKNUT, Nylock, 1/4-20 32 1 BRACKET, Control Rod 33 2 CARRIAGE BOLT, 5/16-18 x 1-1/4 34 4 WASHER, 5/16 35 2 LOCKNUT, Center, 5/16-18 36 2 PIN, Clevis 37 1 PIN, Clevis 38 1 CLIP, Hair Pin 39 2 CLIP, Safety 40 1 CAPSCREW, 5/16-18 x 1-1/2 41 1 BRACKET, Control Rod 42 1 NUT, Hex, Full, 5/16 43 1 LOCKWASHER, 5/16 Control Rod Guide Used with Snowcabs Packaged with Hitch 42 4 6 30 31 32 4 1 3 4 4 11 7 25 26 24 23 21 10 22 38 37 36 36 20 19 16 18 17 14 16 13 12 15 27 8 9 28 3 33 5 34 10 2 2 39 29 35 34 43 41 34 40 Figure 8. A BC C D D E F F G G H I J K L M N O P Q QF A BC C D D E F F G G H I J K L M N O P Q QF Initial Setup & Assembly Figure 10. Bar Stop A. Bar Stop B. Taptite Screw, 5/16-18 x 1 INITIAL SETUP & ASSEMBLY NOTE: Some of the following setup procedures may already be completed. Assemble Blade 1. Place the blade on a flat surface. 2. See Figure 10. Install one bar stop (A) using the two 5/16-18 x 1 taptite screws (B). Do not install second bar stop. 3. See Figure 11. Insert threaded end of eyebolt (A) through lug on blade, and screw on 5/16 nut (B) just far enough so that it is flush with the end of the eyebolt. 4. See Figure 11. Hook the springs (C) into the pivot frame (D). Using a pliers, stretch the springs to hook the opposite ends to the eyebolts (A). 5. See Figure 11. Tighten the nut (B) on each eyebolt enough to expose about 3/4" (19 mm) of thread. 6. See Figure 11...