This document gives instructions for replacing allof the o-rings, seals and screws in all Jandy JS100-SMModel Side Mount Sand Filters. Replacement of all ofthe o-rings and seals requires the complete disassem-bly and reassembly of the filter components and pipingsubassemblies.The instructions were written with safety as thepriority and must be followed exactly. Not following thewritten procedure or taking shortcuts may increase therisk of personal injury. Read through the instructionscompletely before starting the procedure.Before starting the procedure, use the parts list atthe back of these instructions to identify the parts thatare in your kit. In addition to the parts supplied in thiskit, a small amount of silicone sealant is required. Ifany parts are missing from the kit please call your localJandy distributor for assistance. For technical assistance,please contact the Zodiac Pool Systems, Inc. TechnicalSupport Department at 1.800.822.7933.A. Remove the LidWARNINGSHOCK HAZARD!Turn off all switches and the main breaker in thepool/spa heater electrical circuit before starting thereplacement procedure. Failure to comply may causea shock hazard resulting in severe personal injury ordeath.Replacement Kit InstructionsJandy ® JS Sand Filter O-Rings, Seals andHardware Replacement KitWARNINGFOR YOUR SAFETY: This product must be installed and serviced by a professional service techni-cian, qualified in pool/spa pump and filter installation and maintenance. Improper installation and/or operation can create dangerous high pressure which can cause product failure or also causethe filter lid to be blown off, possibly causing death, serious injury or property damage. Improperinstallation and/or operation will void the warranty.These instructions are to be used with the following Jandy Replacement Kit:R0488500 -- JS100-SM O-Ring and Hardware Replacement KitWARNINGBefore installing this product, read and follow all warning notices and instructions thataccompany this filter replacement kit. Failure to follow warning notices and instructions mayresult in property damage, personal injury, or loss of life.H0332400-WARNINGNever attempt to adjust or remove thelid when the pump is running or there ispressure in the system. This can causeproduct failure or also cause the filter lidto be blown off which can result indeath, serious personal injury, orproperty damage.1. Before attempting to loosen or remove the lid, turnOFF the pump and OPEN the air release valve ontop of the filter. DO NOT attempt to loosen orremove the lid while the pump is running or if thefilter pressure gauge indicates there is pressure inthe filter.2. First, try to remove the lid by hand using thehandles.3. If removal by hand is not successful, use a malletor soft-faced hammer to alternately strike thehandles to loosen the lid.B. Drain Water From The Filter1. Remove the water drain cap and drain the waterfrom the filter. See Figure 1.C. Remove the Sand From the Filter1. The sand may be removed by scooping it outthrough the filter lid opening, vacuuming it outwith a suitable wet/dry shop vacuum supplied bya GFCI protected circuit, or may be flushed out ofthe filter through the large fitting at the drain. SeeFigure 2.2. If desired, a universal tailpiece connection, partnumber R0449000 (not included in kit), can be