SERVICE MANUAL
Contents
1. 4 Figure 1 Loosen the screws in the linkage on each side of projector cradle at rear of SL220 See Figure 2 Front of SL220 Adjustment screws Adjustment screws Figure 2 Figure 3 While still pulling the projector cradle away from the sides of the SL220 slide front channels towards back off of bearings and remove projector cradle from SL220 See Figure 4 IMPORTANT Save projector cradle for re use Figure 4 51220 5 2 Service Manual 8 Remove four Phillips head screws holding the SL220 to the frame two from the front and two from the back of the 51220 See Figure 5 and See Figure 6 9 Remove one Phillips head screw holding the outlet box attachment plate to the SL220 See Figure 5 V x 5 total Figure 5 10 Hold the SL220 with one hand to remove weight from the four corner latches Using opening on latch pull latch away from corner and either push slightly away or pull slightly towards self to lock latch within SL220 lift See Figure 6 e Repeat for each corner latch so that all four latches retracted Remove Phillips head screw others in similar locations in front and rear of lift Figure 6 11 Lower lift out of SL220 frame 12 Place lift upside down on flat surface 13 Remove four screws from bracket near control assembly See Figure 72. Figure 7 14 Remove three screws from each side of back wall and two from top of back wall 8 screws total and detach back wall from SL220 assembly See Figure 8 Figure 8 Service Manual SL220 SK2 Replacing Motor Assembly 1 Remove four screws from panel to left of motor assembly See Figure 9 2 Carefully pull out panel it is attached to the ground wire and move it away from motor assembly 3 Disconnect motor cable from control behind panel See Figure 9 Motor assembly Figure 9 gt Remove one flat head screw and screw bushing from each end of motor assembly See Figure 9 Set motor assembly to side See Figure 9 Remove five screws from motor bracket and move bracket enough to remove motor cable from under bracket notches See Figure 10 Motor bracket Figure 10 7 Liberally spread grease D onto motor assembly A shaft using included brush H See Figure 11 CAUTION Grease may stain fabrics 8 Add lifting nut E to motor assembly A by turning it onto the motor assembly shaft See Figure 11 P o Apply grease Figure 11 9 Route motor cable attached to new motor assembly A under notches at bottom of motor bracket See Figure 12 10 Replace five screws removed in Step 6 into motor bracket ensuring th
3. installer s responsibility to make sure all components are properly assembled and installed using the instructions provided WARNING Use this mounting system only for its intended use as described in these instructions Do not use attachments not recommended by the manufacturer WARNING Never operate this mounting system if it is damaged Return the mounting system to a service center for examination and repair WARNING Do not use this product outdoors SAVE THESE INSTRUCTIONS b 1 4 20 3 8 A 9 9 0 1 61220 lifting nut 1 SL220 motor assembly of continuous improvement 5 32 2 2 included gt 5 D 1 08 32 3 16 Grease SL220 screw bushing NOTE The appearance of these parts may vary from the parts being removed during service due to Chief s program 2 H 1 Brush Service Manual SL220 SK2 REMOVE SL220 1 2 3 Remove projector and cabling Unplug lift and save cord Remove and save Phillips head screw and disconnect the grounding strap leading from inside front of SL220 to projector cradle See Figure 1 Gently pull projector cradle away from sides at rear of 51220 See Figure 3 The forward aft adjustment screws may need to be loosened for this If so loosen the screws but do NOT remove the screws See Figure 2 Grounding strap
4. SERVICE MANUAL Motor Replacement Ision CHIEF SL220 SK2 51220 5 2 Service Manual DISCLAIMER Milestone AV Technologies and its affiliated corporations and subsidiaries collectively Milestone intend to make this manual accurate and complete However Milestone makes no claim that the information contained herein covers all details conditions or variations nor does it provide for every possible contingency in connection with the installation or use of this product The information contained in this document is subject to change without notice or obligation of any kind Milestone makes no representation of warranty expressed or implied regarding the information contained herein Milestone assumes no responsibility for accuracy completeness or sufficiency of the information contained in this document Chief is a registered trademark of Milestone AV Technologies All rights reserved A IMPORTANT WARNINGS AND CAUTIONS WARNING A WARNING alerts you to the possibility of serious injury or death if you do not follow the instructions TOOLS FOR INSTALLATION PARTS CAUTION A CAUTION alerts you to the possibility of damage or destruction of equipment if you do not follow the corresponding instructions WARNING Failure to read thoroughly understand and follow all instructions can result in serious personal injury damage to equipment or voiding of factory warranty It is the
5. at motor cable is routed under BOTH brackets at bottom of motor bracket See Figure 12 Motor bracket Figure 12 51220 5 2 Service Manual 11 Set motor assembly A into place 12 Attach motor assembly A to motor bracket using two 1 4 20 x 3 8 flat head screws B and two screw bushings F See Figure 13 16 Attach back wall to SL220 assembly using eight Phillips head screws See Figure 15 Figure 13 13 Connect motor cable behind panel next to motor assembly See Figure 13 14 Replace panel and secure in place with four 08 32 x 3 16 Phillips head screws C See Figure 13 15 Replace four screws into lifting nut near control assembly See Figure 14 NOTE Ensure that longest screw is replaced in the proper location See Figure 14 Control assembly Figure 14 Figure 15 INSTALLING SL220 INTO CEILING 1 Check that four corner latches on 51 220 lift assembly are extended and ready to latch to SL220 frame 2 Orient lift assembly so that the rear of the SL220 with the electrical opening lines up with the outlet box attachment plate on the SL220 frame See Figure 16 3 1881220 lift assembly into place through the SL220 frame See Figure 16 Ensure that there are four audible clicks each corner hook clicking into place onto the frame See Figure 17 SL220 frame Outlet box atta
6. chment plate Electrical Opening Figure 16 4 Lower onto SL220 frame carefully lining up outlet box attached to SL220 frame with opening at rear of SL220 See Figure 17 5 Secure the SL220 to the SL220 frame using four 8 32 x 1 Phillips head screws previously removed two in the front and two in the back of the SL220 See Figure 17 Service Manual SL220 SK2 6 Secure the outlet box attachment plate to the SL220 using one 8 32 x 1 Phillips head screw previously removed Corner Figure 17 7 Slide front channels of previously removed projector cradle forward onto the SL220 bearings See Figure 18 Front of Figure 18 8 Line up rear spacers with attachment holes SL220 arms See Figure 19 9 Tighten rear spacers Figure 19 10 Reconnect grounding strap from inside front of SL220 to projector cradle using the Phillips head screw previously removed See Figure 20 Figure 20 11 Plug in SL220 and verify proper operation 12 Re install projector and cabling using cable tie mounts and cable ties as required 13 Test and adjust projector as required 14 Return removed motor assembly to Chief Manufacturing 51220 5 2 Service Manual CHIEF Our Mounts Your Vision Chief Manufacturing a products division of Milestone AV Technologies 8820 002025 00 2013 Mile
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