Instructions for Continued Airworthiness

Transcription

1 Instructions for ontinued irworthiness Grizzly law Ski rag ocument No. F00I ircraft Serial Number: ST Number: S0K These Instructions for ontinued irworthiness shall be included in the airplane Maintenance Material when the Grizzly law Ski rag is installed. The information contained in this manual supplements or supersedes the type design data only in those areas listed herein. For maintenance practices and procedures, not contained in this document, consult the maintenance material, or other information that was required by the applicable regulations under which the airplane was type certificated. REVISION REOR Revision escription ate Original // *This document will be updated in entirety when revisions are incorporated. oc. F00I Rev. Orig. Page of

2 SETION : GENERL The irframes laska Grizzly law Ski rag is a drag device that attaches to wheel replacement skis. The drag is designed to enhance ground handling characteristics and aid the pilot in controlling ground speed on ice and snow by simultaneous or differential application of the aircraft s brake pedals. SETION : ONTROL N OPERTION The drag mechanism is a hydraulically controlled lever arm actuated by the existing brake pedals on the aircraft. epressing a brake pedal causes actuation of a hydraulic slave cylinder on the respective ski which puts upward force on the forward end of the arm. The aft end of the arm has a head with steel or steel/carbide studs that extend down through a hole in the ski and are forced into the ice or snow below the ski. The mechanism is mounted to the top surface of the ski near the pedestal on the inboard side. SETION : INSTLLTION, REMOVL N SERVIING INFORMTION. Installation Refer to following drawings as applicable for installation instructions: copy is attached to this I and replacement copies may be obtained by contacting irframes laska per Sect. of this document. Ski Model irglas: L000 L00 L000 Installation rawing No. F0000. Removal Removal of the ski drag is opposite of installation. If the skis are to be operated with the ski drags removed, the three attachment holes should be filled with the appropriate length ¼ in. deg. countersunk screws and locknuts to prevent the holes from clogging and to retain the bushing.. Servicing The only necessary servicing of the drag assembly is maintaining the proper level of brake fluid in the system and replacement of worn studs. Maintaining the brake fluid level can be done by following the aircraft manufacturer s instructions. bleeder valve is located on the side of the cylinder to aid in removing air or adding fluid to the system. Use only MILH0 or MILH0 compatible brake fluid. oc. F00I Rev. Orig. Page of

3 . Stud Replacement If ski drag performance drops below the desired level, replace the studs using the procedure contained below. Refer to attached drawing F00 Sheet a) Remove the bolt connecting the drag head to the arm. b) Remove the two internal hex set screws from the top of the head. c) Remove the worn stud using a narrow blade slotted screwdriver from the top of the head. d) Install new stud opposite of removal. e) Install set screw behind stud until contact is made and tighten until snug. f) Place head on arm and reinstall bolt.. Inspections. Inspect ski drags on a 00hr or nnual basis as applicable. Inspect for: Loose or damaged hardware tighten or replace as necessary. ent or damaged arm or drag head components replace if found. Hydraulic fluid leakage between cylinder and piston or brake line attachment. o If leakage is found between cylinder and piston, replace Orings and inspect cylinder inside diameter for scoring. Replace a scored cylinder if leaking continues after replacement of Orings. o For leakage at the brake line attachment, tighten fitting or reinstall fitting with new thread sealant in place. Wear on piston cap replace when height of cap measures less than.0 in. Wear in pivot bushings If side to side movement of the arm is more than.0 in. measured at the slave cylinder centerline inspect bushings and replace if inside diameter measures more than. in. Inspect complete assembly for proper operation and verify spring fully retracts drag head when in neutral position. Inspect cutout for drag head in ski to ensure sealant on cut edge remains intact and no delamination or other damage to the fiberglass structure has occurred. If damage or delamination is found, follow the ski manufacturer s instructions for proper repair procedures. If sealant needs replacing, use a marine grade polyurethane sealant.. Inspect ski drags if the drag head inadvertently contacts surfaces or obstacles other than ice or snow such as rocks, gravel or other hard objects. Inspect for: Loose or damaged hardware tighten or replace as necessary. ent or damaged arm, head or other ski drag components replace if found. oc. F00I Rev. Orig. Page of

4 SETION : IRWORTHINESS LIMITTIONS The irworthiness Limitations Section is F approved and specifies maintenance required under Secs.. and 9.0 of the Federal viation Regulations unless an alternative program has been F approved. No additional airworthiness limitations are added. SETION : PRTS LIST Refer to the attached assembly drawings F00 sheets and installation drawing F0000 for a complete parts list. For replacement parts, please use the contact information below. SETION : OUMENT ISTIUTION opies of this I document will be distributed to all known purchasers of the Grizzly law Ski rag. Replacement copies and the latest revision of this document are available at the irframes laska Website or by contacting us using the information below. WESITE: To request a paper or electronic copy to be sent to you please contact: irframes laska PO ox irchwood Loop Spur hugiak, K 99 Phone: 900 oc. F00I Rev. Orig. Page of

5 REVISIONS ZONE REV. ESRIPTION TE PPROVE 0. MINOR UPTE TO PRTS N ESRIPTIONS // JLP UPTE P/N NH TO NH E NOTE, UPTE OM ITEM P/N //0 //0 JLP JLP 9 NOTES: NH USE WITH NO SPER OR ITEM. SPER. NH USE WITH ITEM,.0 SPER N ITEM,. SPER. 0 9 ITEM NO. PRT NUMER ESRIPTION QTY. F00 RM MS09 LEVIS PIN /X.0 S.S. SLOTTE SPRING PIN N PIVOT OLT NS9F0P WSHER SEE NOTE RG OLT F0 STU /X/ S.S. SET SREW 9 NS9F0P WSHER 0 MS OTTER PIN F90. SPER (OPTIONL) F90.0 SPER (OPTIONL) F90. SPER (OPTIONL) (NOT SHOWN) ZFI000 FLNGE USHING LE0G0S SPRING NS9FNP WSHER N0 NUT MS0 OTTER PIN 9 F00 RG HE UNLESS OTHERWISE SPEIFIE: NME TE IMENSIONS RE IN INHES TOLERNES: FRTIONL NGULR: EN TWO PLE EIML. THREE PLE EIML.0 RWN HEKE ENG PPR. MFG PPR. JTZ // PROPRIETRY N ONFIENTIL THE INFORMTION ONTINE IN THIS RWING IS THE SOLE PROPERTY OF NORTHERN IRFRMES LL. NY REPROUTION IN PRT OR S WHOLE WITHOUT THE WRITTEN PERMISSION OF NORTHERN IRFRMES LL IS PROHIITE. NEXT SSY USE ON PPLITION INTERPRET GEOMETRI TOLERNING PER: MTERIL SEE OM FINISH O NOT SLE RWING Q.. OMMENTS: TITLE: SKI RG SSEMLY SIZE WG. NO. F00 REV 0. SLE: : WEIGHT: SHEET OF

6 REVISIONS ZONE REV. ESRIPTION TE PPROVE 0. EVELOPMENT REV E NOTE // 9 NOTES:. OMINTION OF ITEMS 0 + MY E SUSTITUTE WITH THE FOLLOWING OMINTION: ITEM 0: MS9S ITEM : MS0 0 ITEM NO. PRT NUMER ESRIPTION QTY. F0 YLINER F00 SE PLTE N 90 EG NPT TO FLRE FITTING /S/ 00 LEEER SREW SSEMLY /0X9/ S.S. FLT SOKET HE P SREW F0 PISTON F0 PISTON P MS0 ORING 9 F00 TOWER 0 MS9S0 TOWER SREW NS9F0P WSHER MS0N TOWER NUT /X/ S.S. SLOTTE SPRING PIN UNLESS OTHERWISE SPEIFIE: NME TE IMENSIONS RE IN INHES TOLERNES: FRTIONL NGULR: EN TWO PLE EIML. THREE PLE EIML.0 RWN HEKE ENG PPR. MFG PPR. JTZ // PROPRIETRY N ONFIENTIL THE INFORMTION ONTINE IN THIS RWING IS THE SOLE PROPERTY OF NORTHERN IRFRMES LL. NY REPROUTION IN PRT OR S WHOLE WITHOUT THE WRITTEN PERMISSION OF NORTHERN IRFRMES LL IS PROHIITE. NEXT SSY USE ON PPLITION INTERPRET GEOMETRI TOLERNING PER: MTERIL FINISH O NOT SLE RWING Q.. OMMENTS: TITLE: SKI RG SSEMLY SIZE WG. NO. F00 REV 0. SLE: : WEIGHT: SHEET OF

7 REVISIONS ZONE REV. ESRIPTION TE PPROVE 0. EVELOPMENT REV E NOTE, SPER IM. // SETION. MX. SEE NOTE UNLESS OTHERWISE SPEIFIE: NME TE NOTES:. SHOWN WITH OPTIONL SPERS INSTLLE. USE SPER NEESSRY TO OTIN ESIRE HE LENGTH. PROPRIETRY N ONFIENTIL THE INFORMTION ONTINE IN THIS RWING IS THE SOLE PROPERTY OF NORTHERN IRFRMES LL. NY REPROUTION IN PRT OR S WHOLE WITHOUT THE WRITTEN PERMISSION OF NORTHERN IRFRMES LL IS PROHIITE. NEXT SSY USE ON PPLITION IMENSIONS RE IN INHES TOLERNES: FRTIONL NGULR: EN TWO PLE EIML. THREE PLE EIML.0 INTERPRET GEOMETRI TOLERNING PER: MTERIL FINISH O NOT SLE RWING RWN HEKE ENG PPR. MFG PPR. Q.. OMMENTS: JTZ // TITLE: SKI RG SSEMLY SIZE WG. NO. F00 REV 0. SLE: : WEIGHT: SHEET OF

8 REVISIONS ZONE REV. ESRIPTION TE PPROVE ORIGINL ISSUE REMOVE ETIL SQURE UT OUT OPTION //0 JLP INSTLL ON INOR SIE F TTH IRRFT RKE LINE TO ELOW FITTING. SEE NOTES N. F E IRGLS L000, L00, L000 LEFT SKI SHOWN, RIGHT SKI RG INSTLLTION IS THE SME. ETIL SLE : E POSITION PIVOT OLT ELOW XLE ENTERLINE.0 NOTES:. THE FOLLOWING TEHNIQUES WILL RESULT IN THE HIGHEST QULITY UT ON THE SKI: ) RILL PRESS WITH HOLE SW IS THE PREFERRE METHO FOR UTTING HOLES. IF HN HEL RILL MUST E USE, ENSURE THE SKI IS HEL SEURELY EFORE NY UTTING OR RILLING OPERTION. ) OVER RE TO E UT WITH MSKING TPE N UT THROUGH TPE. ) STRT UT Y RUNNING HOLE SW IN REVERSE TO EPTH OF /". ) MKE UT T LOW SPEE SETTINGS. RILL X. IN. HOLES, OUNTERSINK SO SREW HE SITS FLUSH OR WITH SLIGHT REESS IN RUNNER. SE SPER MY E USE S TEMPLTE. ENTER HOLES ON STEEL RUNNER.. SEL UT OR RILLE EGES WITH MRINE GRE POLYURETHNE SELNT. M 00 IS N EPTLE SELNT.. RILL N RIVETS IF NEESSRY ON ENTERLINE OF STEEL RUNNERS TO MINTIN MXIMUM EGE ISTNE OF 0. IN. OUNTERSINK OTTOM SIE OF RUNNERS /" I X.00 EPTH N INSTLL STINLESS STEEL /" I. OME HE LIN RIVET, IFI GRE 0 OR. (ITEM ) INSTLL WITH RIVET HE ON TOP SURFE OF SKI.. ONNET IRRFT HYRULI RKE LINE TO FITTING ON YLINER. IF ITIONL RKE LINE LENGTH OR FITTINGS RE NEESSRY, INSTLL PER... RKE FLUI S SPEIFIE PER IRRFT MNUFTURERS INSTRUTIONS. LEEER VLVE IS LOTE ON THE SIE OF THE TUTING YLINER TO I IN REMOVING IR OR ING FLUI TO THE SYSTEM S NEESSRY. ITEM RIVET IF NEESSRY SEE NOTE. MX PLES MX. TYP VERIFY SKI RG HE EXTENS N RETRTS PROPERLY EFORE RETURNING IRRFT TO SERVIE.. UPTE IRRFT WEIGHT N LNE REORS. SKI RGS INSTLLE WEIGHT:. L RG SSEMLY G LOTE T PIVOT OLT. UT STEEL RUNNER ON EITHER SIE OF HOLE LOTION. RILL X. PILOT HOLES X. REMOVE REMINING POINTS WITH FINE TOOTH SW OR FILE. SKI MOIFITION SEE NOTE ETIL SLE :. ITEM RIVET IF NEESSRY SEE NOTE PROPRIETRY N ONFIENTIL THE INFORMTION ONTINE IN THIS RWING IS THE SOLE PROPERTY OF NORTHERN IRFRMES LL. NY REPROUTION IN PRT OR S WHOLE WITHOUT THE WRITTEN PERMISSION OF NORTHERN IRFRMES LL IS PROHIITE. ITEM NO. PRT NUMER ESRIPTION QTY PER SKI L000 L00 L000 F0 F0 IRGLS STRIGHT SKI SE SPER (L000, L00) SE SPER (L000) F00 SKI RG SSEMLY F90 F90 /0 /0 X / NEXT SSY NS9F0P OR NS90R PPLITION USE ON UNLESS OTHERWISE SPEIFIE: IMENSIONS RE IN INHES TOLERNES:.X..XX.0.XXX.0 NGULR: INTERPRET GEOMETRI TOLERNING PER: MTERIL FINISH S.S. USHING (L000, L00) S.S. USHING (L000) OR STINLESS STEEL SELF LOKING NUT, LTERNTE: SE GR. OR HIGHER FLT HE SNK SREWSS PER STM F9, LTERNTE: LLOY STEEL SREW PER STM F OR EQUIV. WSHER /" STINLESS STEEL OME HE LIN RIVET IFI GRE 0 OR. RWN HEKE ENG PPR. MFG PPR. Q.. OMMENTS: NME JTZ TE // TITLE: SIZE F0000 R SKI RG INSTLLTION: IRGLS SKIS WG. NO. SLE: :0 REV SHEET OF