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SIMPLEX Mfg Aviation Mission Equipment SL2017-017 Rev. B Page 1 of 6
SERVICE LETTER Revision Description Revision Date IR Initial Release July 20, 2017 Updated installation instructions to use Loctite MR 5438 pipe sealant. February 2, 1018 Updated approval statement. March 14, 2018 Written By: Approved By:
Ellen Brooks Daniel Wright Engineering Technical Writer V.P. of Operations SUBJECT: Model R44III Spray System Honda Pump Fitting Replacement.
APPLICABILITY: Model R44III Spray System Serial numbers 0045 through 0150.
Serial numbers 0150 to 0163 only require replacing Teflon tape with pipe sealant per Step 5.a.
SUMMARY: Changes are required to upgrade the fitting from the Pump Housing to the Pressure Camlock Yoke and to secure the hose assemblies to the Fwd RH Boom.
PURPOSE: This service letter will provide instructions for installation of the provided replacement parts.
COMPLIANCE: Mandatory for all Model R44Ill Spray Systems noted above.
APPROVAL: The resultant alteration to the affected aircraft described by this Service Letter has been shown to comply with the applicable Federal Aviation Regulations and is FAA Approved.
ADDITIONAL DOCUMENTS: Installation Manual, Document No. PM001-HPR44III-25-008, Rev 7 Instructions for Continued Airworthiness, Document No. PM011-HPR44III-25-007, Rev 8 Alert Service Bulletin, Document No. ASB2017-001, Rev IR WEIGHT AND BALANCE: No effect.
ELECTRICAL LOADS: No effect.
TOOLS: Standard Aviation Shop Tools SIMPLEX Mfg Aviation Mission Equipment 13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257-3511 Fax: +1 (503) 257-8556 mail@simplexmfg.com
SL2017‐017 Rev. B Page 2 of 6
13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257‐3511 Fax: +1 (503) 257‐8556 mail@simplexmfg.com REQUIRED PARTS: Parts required to comply with this service letter are listed i n Table 1. Simplex is supplying all customers one service kit per affected serial number. The service kit contains the parts listed below. Additional replacement parts and service kits may be ordered through your local authorized Simplex Representative or directly from Simplex Manufacturing.
Table 1: Replacement Parts Replacement Parts Simplex Part Number Specification Description Quantity 000‐123879‐000 Banjo MALE CAMLOCK TO MALE PIPE, 2" 1 000‐123847‐000 Banjo POLY ELBOW 2" FPT X 2" MPT 1 000‐110070‐001 BOLT 10‐32 X 1‐9/32 HEX HD 1 000‐111180‐001 10‐32 CAD LOCKNUT 1 000‐112134‐000 WASHER, STL. .032 THK X .203 ID X .438 OD, CAD 2 000‐115571‐000 CUSHION CLAMP 1 000‐107549‐000 21‐5/16" CABLE TIE 2 PM001‐HPR44III‐25‐008, Rev 7 Installation Manual 1 PM011‐HPR44III‐25‐007, Rev 8 Instructions for Continued Airworthiness
1 MATERIALS: Loctite MR 5438 pipe sealant o r equivalent (not provided)
The information contained in the letter is proprietary to Simplex Manufacturing Co. Inc. Disclosure, reproduction, or use of this data for any purpose other than the operation and maintenance of the Simplex Manufacturing System is forbidden without prior written authorization from Simplex Manufacturing Co. Inc., Portland, Oregon.
SL2017‐017 Rev. B Page 3 of 6
13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257‐3511 Fax: +1 (503) 257‐8556 mail@simplexmfg.com ACCOMPLISHMENT INSTRUCTIONS General: The original 2‐inch coupling on the Honda Pump for the R44III Spray System can be over torqued which may cause cracking. To ensure safe operation of the R44III Spray System, the coupling and elbow must be replaced with the new parts included in the Pump Pre‐assembly (P/N 244‐301113‐301).
1. Locate the coupler, elbow and camlock on the top of the Pump Housing. See Figure 1.
2. Disconnect the camlock from the Pressure Camlock Yoke.
3. Remove the existing coupler, elbow and camlock.
4. Discard the removed coupler, elbow and camlock.
5. Install the new elbow and camlock. See Figure 2.
Note:
A coupler will not be used between the Pump Housing and the Poly Elbow.
CAUTION:
Do not over tighten as the material could be damaged.
a. Install the Male Camlock to Male Pipe (P/N 000‐123879‐000) to the Poly Elbow using Loctite MR 5438 following manufacturer’s recommended instructions. Ensure that the Camlock is fully inserted into the Elbow. As these are NPT fittings, there is no recommended torque value. Ensure the connection is snug, generally, one to two turns past finger‐tight is adequate. Further tightening may split female threaded plastic parts.
b. Install the Poly Elbow (P/N 000‐123847‐000) to the Pump Housing using Loctite MR 5438 following manufacturer’s recommended. As these are NPT fittings, there is no recommended torque value. Ensure the connection is snug, generally, one to two turns past finger‐tight is adequate. Further tightening may split female threaded plastic parts.
c. Ensure the alignment of the Camlock is clocked correctly to mate with the existing Pressure Camlock Yoke.
d. Connect the Pressure Camlock Yoke to the Camlock.
SIMPLEX Mig Aviation Mission Equipment SL2017-017 Rev. B Page 4 of 6
- CAMLOCK
ELBOW FITTING
COUPLER
PUMP HOUSING Figure 1: R44IlI Honda Pump Original Fittings
MALE CAMLOCK TO MALE PIPE 000-123879-000
POLY ELBOW 000-123847-000
- PUMP HOUSING Figure 2: R44III Honda Pump Replacement Fittings SIMPLEX Mfg Aviation Mission Equipment 13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257-3511 Fax: +1 (503) 257-8556 mail@simplexmfg.com
SL2017‐017 Rev. B Page 5 of 6
13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257‐3511 Fax: +1 (503) 257‐8556 mail@simplexmfg.com
6. Secure the Suction/Pressure Pipe Assemblies to the Fwd RH Boom Support Assembly.
The plumbing pressure pipes and filter assemblies run from the center boom through the right hand spray boom extension and are supported in place using a cushion clamp and cable ties. See Figure 3.
a. Remove the Locknut, Bolt and Washers from the Fwd RH Boom Support Assembly.
b. Install the Cushion Clamp (P/N 000‐115571‐000) to the boom support assembly with the Locknut (P/N 000‐111180‐001), Bolt (P/N 000‐110070‐001) and Washers (P/N 000‐112134‐000).
c. Install the cable ties in the location shown in Figure 2. The cable ties will secure the RH plumbing pressure pipe to the LH plumbing pressure pipe without letting the two pipes touch.
i. Install one (1) cable tie around both plumbing pressure pipes. The cable tie should be loose.
ii. Install one (1) cable tie around the previously installed cable tie and between the two plumbing pressure pipes. Tighten the cable tie.
iii. If necessary, tighten the first cable tie to remove slack.
7. At first use of the spray system after fitting replacement, perform a visual inspection and a functional test to ensure that the fittings are functioning correctly.
8. In the rotorcraft’s logbook, indicate that Simplex Service Letter SL2017‐017 has been complied with.
SIMPLEX Mfg Aviation Mission Equipment SL2017-017 Rev. B Page 6 of 6
PUMP ASSEMBLY / SUCTION PIPE ASSEMBLY
PRESSURE CAMLOC
YOKE AFT REG 21-5/8" CABLE TIE 000-107549-000 (x2)
LOCKNUT 000-111180-001
CUSHION CLAMP 000-115571-000 WASHER 000-112134-000 (x2) BOLT 000-110070-001 CABLE TIES (2 PL)
CUSHION CLAMP LE 4 XE EVION Figure 2: Cable Tie and Cushion Clamp Locations SIMPLEX Mig Aviation Mission Equipment 13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257-3511 Fax: +1 (503) 257-8556 mail@simplexmfg.com