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5. Check the condition of the batteries. a. Specific gravity (1.280 is ideal for fully charged batteries. b. The battery bank voltage should come up to about 30.7 volts at the end of the cycle. c. The DC charging current should start in the "normal" range and end in the "finish" range. If the charger is still inoperative after the above checks have been made, call your nearest authorized service center. Fig. 12 Page 14 CLARKE TECHNOLOGY Model SPS-28 Space Sweeper Operator's Manual Capacitor Test If a commercial capacitor checker is not available, the following test may be made: 1. Briefly short the capacitor terminals together with a screwdriver. 2. Disconnect a wire from either capacitor terminal. 3. Adjust an ohmmeter to a high value such as RX10K or RX1 Meg. 4. Connect the ohmmeter leads to the capacitor terminals. 5. A good capacitor will cause the indicator to move quickly to zero ohms, then slowly return to infinite ohms. An open capacitor will not cause any indicator movement; a shorted capacitor will give a continuous zero ohms reading. 6. If the test is to be repeated, the capacitor terminals must again be shorted together briefly. Diode Test 1. You must have a #308 ct. Everready continuity tester or equivalent/ 2. Desolder both wires from the diode lead connections. (Clamp heatsink pliers on the diode leads to avoid damaging the diodes.) 3. Attach one of the test unit leads to either diode lead. 4. Attach the other test unit lead to the diode heatsink. 5. Turn the test unit on and note if the test unit bulb lights. DANGER: Reversing charge or polarity of wiring could cause batteries to EXPLODE causing serious bodily harm to yourself or others. 6.. Reverse the test unit leads in Steps 3 and 4. 7. Turn the test unit on and note if the test unit bulb lights. 8. Good diode - test light bulb should light up in one of Steps 5 and 7 and not in the other. Defective diode - test bulb will light up in both Steps 5 and 7. Defective Diode - Test bulb will not light up in either Steps 5 or 7. CLARKE TECHNOLOGY Model SPS-28 Space Sweeper Operator's Manual Page 15 CLARKE TECHNOLOGY Model SPS-28 Main Frame, Brush Assembly and Drive System Drawing 1/99 87 86 95 2842 77 75 76 74 4 5 6 24 25 26 71 96 70 3 96 4 78 22 37 22 88 49 32 33 62 69 49 60 25 57 56 55 52 54 53 90 34 52 51 82 65 49 8284 83 82 73 4 4 5 6 25 26 70 3124 6968743 81 42 95 94 42 28 78 80 66 89 49 32 33 48 49 49 50 49 44 47 383940 41 36 22 37 20 45 43 2229 46 2827 28 2735 34 33 32 31 29 4227 24 25 26 30 23 22 20 2219 21 62 69 49939249 59 4 5 6 4 31 7 8 14 1011 13 12 14 72 2 16 17 18 10 18 15 1013 1211 2 5885 42 36 67 Page 16 CLARKE TECHNOLOGY Model SPS-28 Space Sweeper Operator's Manual CLARKE TECHNOLOGY Model SPS-28 Main Frame, Brush Assembly and Drive System Parts Lists 1/99 Ref # Part No. Description Qty 1 790322 Arm, Lower Clutch, R.H. 1 2 925543 Pin, 1/8 x 1. Roll 3 3 920349 Nut, .-20 3 4 920160 Nut 5/16 - 18 Hx Jam 6 5 980652 Washer 5/16 Lock 3 6 791323 Block, Pedal Pivot 3 7 85813A Screw 5/16 -18 x 1" Hx 4 8 980652 Washer 5/16 Lock 8 9 799728 Wheel 1 10 902710 Bearing, Wheel Shaft 3 11 980023 Washer, Thrust 2 12 877661 Seal, Oil 2 13 902682 Bearing, Wheel 2 14 799729 Wheel 1 15 790326 Arm, Lower clutch, L.H. 1 16 797721 Shaft, Wheel 1 17 798530 Support, Wheel Bearing 1 18 962385 Screw, 10-24 x . 2 19 915044 Key, 3/16 x 3/16 x 1 1 20 797727 Shaft, Brush Drive 1 21 903540 Belt, Drive 1 22 962103 Screw, 5/16 -18 x 3/8 6 23 796920 Pulley, Driven 1 24 962686 Screw, 5/16 -18 x 1. Hx 2 25 980638 Washer, 3/8 "Lock 4 26 808256 Spacer, Parallel Arm Rear 3 27 962219 Screw, .-20 x 7/8 Hex 2 28 980657 Washer, . Lock 2 29 902713 Bearing 2 30 790324 Arm, Clutch 1 31 797422 Rod, Brush Lift 3 32 980651 Washer, 5/16 Plain 3 33 925036 Pin, 3/32 x . Cotter 3 34 925550 Pin, 1/8 x x 1" Roll 1 35 799727 Wheel, Friction Drive 1 36 796921 Pulley, Brush Drive 2 37 915076 Key, 3/16 x 3/16 x 9/16 Ling Sq. 2 38 167308 Retaining Ring 1 39 857301 Retaining Ring 1 40 902659 Bearing 1 41 796926 Pulley, Brush Drive Idler 1 42 962455 Screw, .-20 x 1" Hex 6 43 790320 Arm Assembly, Idler Pulley 1 44 798220 Spacer, clutch Arm 1 45 858345 Spring, Bracket Adjusting Screw 1 46 903539 Belt, Brush Drive 1 47 815051 Knob, Handle 1 48 793923 Handle Assembly, Brush Lift 1 49 962546 Screw, 10 x . Rd. Hd. Type 23 26 Ref # Part No. Description Qty 50 302101 Clamp 1 51 796623 Plate, Brush Lift 1 52 791121 Bushing, Spring 2 53 797423 Rod, Brush Lift 1 54 858302 Spring 1 55 920329 Nut, 5/16 -24 Hex 1 56 809904 Yoke 1 57 806705 Pin 1 58 795121 Label, Instruction 1 59 60072A Frame Assembly, Main 1 60 962302 Screw, 3/8 x 16 x 5/8 Hex 1 61 62 798526 Skirt, Brush Rear 1 63 798528 Skirt, Brush L.H. 1 64 797225 Retainer, L.H. Skirt 1 65 797224 Retainer, L.H. Skirt 1 66 798527 Skirt, Brush R.H. 1 67 797722 Shaft, Brush 1 68 798525 Skirt, Hopper Top 1 69 797221 Retainer 2 70 790337 Arm, Brush 2 71 797620 Seal, Brush Arm 2 72 883351 Grease Fitting 1 73 920260 Nut, 3/8 -16 x 5/16 Hex 2 74 53038A Spring 2 7...

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