Attachment 8 -58331-4-100_26130.pdf

CUI

TEST#: ESR#:

WN#: SSP#:

WS#:

SRF-JRMC DET SASEBO TEST MEMO

TITLE

WHEEL & WHEEL BRAKING SYSTEM COMPONENT

TEST MEMO PREPARATION

PRINT NAME & SIGNATURE PHONE CODE DATE

PREPARED BY

REVIEWED BY

APPROVED BY

SHIP/HULL#

SCOPE

TEST COMPLETION

PRINT NAME & SIGNATURE ORGANIZATION BADGE/RANK DATE

LWC

S246

SRF-JRMC

DET SASEBO

POST-TEST TECHNICAL REVIEW

PRINT NAME & SIGNATURE PHONE CODE DATE

Evaluation: ACCEPTED REJECTED

Action necessary: REPAIR ITEMS RETEST EQUIPMENT RESUBMIT DATA

COMMENTS

SASN-26-S232-0010

SASN-003-26

252-8048

252-8049

252-8045

3/23/26

3/24/26

3/23/26

S246B

S246A

S246CTE

Replacement of wheel & wheel braking system component.

589-54-001

58331-4-100_26130

57078-RS01-L013

A. NAKASHIMA

PHILLIPS.SHAUN.P

ARRY.1093485625

Digitally signed by

PHILLIPS.SHAUN.PARRY.1093485625

Date: 2026.03.24 09:20:24 +09'00'

S. IIDA

S. PHILLIPS

NAKASHIMA.ATSUS

HI.1274756299

Digitally signed by

NAKASHIMA.ATSUSHI.1274756299

Date: 2026.03.23 12:04:43 +09'00'

IIDA.SHUNICHI.127

4619127

Digitally signed by

IIDA.SHUNICHI.1274619127

Date: 2026.03.23 12:48:15 +09'00'

NBU-7 / LARC-936

TEST#: 58331-4-100_26130 ESR#: SASN-26-S232-0010

WN#: 57078-RS01-L013 SSP#: SASN-003-26

WS#: 589-54-001

TEST PROCEDURE GENERAL NOTES

1. TEST SEQUENCE: Unless otherwise specified in the test document, this test procedure (TP) shall be completed in provided order.

2. VERIFICATION: The person designated to sign for an action verifies, based on personal observation, objective evidence, or watch stander reports and certifies by signature that the action has been performed in accordance with the specified requirements.

3. USE ORIGINAL DOCUMENTS: All data attached to the Master TP shall have original pen and ink entries on the data sheets (unless otherwise specified in the test procedure.)

4. USE DARK INK: All signature and data shall be in dark, water insoluble ink.

5. CORRECTIONS: When an error was made, it shall be corrected by drawing a single line through the error, recording the correct entry, initialing, dating and printing the name of the person making the correction in accordance with JOINT FLEET MAINTENANCE MANUAL (JFMM), COMUSFLTFORCOMINST 4790.3, VOLUME

V, QUALITY MAINTENANCE.

6. LATEST APPLICABLE REVISION: Use the latest applicable revision of plans, instructions, technical manuals, and other reference materials cited in this test procedure.

7. INSTRUMENT CALIBRATION: All measuring equipment shall be in current calibration as required by

NAVSHIPREPFACINST 4734.1.

8. OPERATION OF COMPONENTS: Only authorized personnel shall operate ship’s permanently installed equipment.

The cognizant Shop shall control and operate their temporary test equipment. Ship’s Force shall operate temporary systems and equipment that are formally turned over to the ship.

9. SAFETY INSTRUCTION: The Test Director is responsible for the safe conduct of this test. The safety precautions of NAVSHIPREPFAC M-5100.8 shall be observed at all times.

10. TEST STOPPAGE: The Test Director shall stop the test once a problem has been found in the system or equipment being tested. S246 Testing Standard Operating Procedure (SOP) shall be used to determine course of action prior to resuming the test procedure.

11. ENERGIZED EQUIPMENT: NSTM 300, para 300-2.4 shall be followed when working on energized equipment.

12. DATA COLLECTION: The test documents may require collection of additional data for which there is no acceptance criteria, provided the data sheet identifies that data is for information only.

13. SUPPLEMENTATION: When supplementation is made, annotate the supplemental information on the page with ‘See Remarks’ followed by a sequential numbering system corresponding in the Remarks section.

14. USE ASTERISK (*): When supplementation, correction and/or signature is made but there is not enough space, annotate using an asterisk (*) followed by sequential number adjacent to the portion then clarify on the same page using the same annotation.

WN#: 57078-RS01-L013 SSP#: SASN-003-26

WHEEL & WHEEL BRAKING SYSTEM COMPONENT

1. PURPOSE

1-1 The purpose of this test is to certify the satisfactory replacement of wheel & wheel braking system components.

2. REFERENCES

2-1 TECHNICAL MANUAL

2-1.1 F9YC0-AM-TMM-010, 020, 030; LIGHTER AMPHIBIOUS RESUPPLY CARGO, FIVE TON (LARC-V A1/A2)

2-2 ESR RESPONSE

2-2.1 LARC876-0019; Wheel and Wheel Braking System components; replace

2-3 JFMM-JOINT FLEET MAINTENANCE MANUAL

2-4 NAVSHIPREPFAC M-5100.8; SAFETY AND HEALTH PROGRAM MANUAL

3. TEST AND SUPPORT EQUIPMENT/MATERIAL

3-1 IQAN display

3-2 Test fittings, pressure gauges and hoses

4. GENERAL PRECAUTIONS

4-1 Only those personnel actively engaged in performing or witnessing this test shall be permitted in the testing area.

All specified safety regulations shall be strictly observed.

4-2 To prevent injury or death, ensure that certified test equipment is used during testing.

4-3 Safeguarding of personnel and equipment shall be adhered to at all times.

4-4 Never open the cap on the engine coolant system when the engine is hot (greater than 120°F). The system may be pressurized and contain coolant at temperatures which will cause severe burns.

4-5 Do not move the craft until all ground personnel have cleared the immediate area. Personnel in the surrounding area may be injured or killed if struck by the craft.

4-6 Do not move the craft until all personnel are securely onboard or have cleared the immediate mooring area.

Personnel in the surrounding area may be injured or killed if struck by the craft.

4-7 Personnel onboard the craft should be notified that transition from the land to water is in progress and from water to land is in progress. This notification will allow personnel to prepare for turbulence and the abrupt speed reduction when the front wheels become grounded. Failure to provide notice may result in serious injury or death to onboard personnel.

WN#: 57078-RS01-L013 SSP#: SASN-003-26

5. OPERATIONAL TEST

5-1 PRETEST BRIEFING Conduct a pretest briefing (e.g. safety precaution, station assignments, testing steps) with all involved test personnel.

5-2 AT LAND TEST Conduct the AT LAND TEST under following test conditions. Record result in its corresponding

TEST DATA SHEET

5-2.1 12 & 24 VDC ON

(1) Emergency Service Brake Pump & Motor with Starting Solenoids, Hydraulic Pump and Motor Assy

a. Place the emergency service brake pump switch in the ON position. Verify that the emergency service brake pump in operation and checks for leaks.

Acceptance criteria: The emergency service brake pump is operating properly with no leaks detected.

5-2.2 ENGINE RUNNING

(1) Service Brake Tail Light Hydraulic Pressure Switch, Service Brake Hydraulic Pressure Transducers, Accumulators

a. Place the craft into the LAND MODE/FORWARD position. Verify that the alarm message “SERVICE BRAKE PRESS. LOST! SLOW CRAFT TO A STOP! is not indicated on the IQAN display.

Acceptance criteria: The IQAN display shall not indicate “SERVICE BRAKE PRESS. LOST! SLOW CRAFT TO A STOP!.

b. Pump the brake pedal a few times.

Acceptance criteria: An accumulator charging sound will be made.

(2) Brake Pedal Control Valves

a. Install two #4 swivel nut T-Fittings in the Tandem Modulating Valve shown in Figure 5-1 in order to install the two test gauges and hoses.

b. Start the engine and place into LAND MODE/FORWARD.

c. Press brake pedal to the floor twice. Press the brake pedal to the floor and hold. The gauges shall read 2,000 ±100 psig.

Acceptance criteria: The gauges shall read 2,000 ±100 psig.

Figure 5-1

WN#: 57078-RS01-L013 SSP#: SASN-003-26

5-2.3 SECURE THE ENGINE

(1) Accumulators

a. Secure the engine.

b. Press the brake pedal. Verify the brake pedal resistance.

Acceptance criteria: The brake pedal shall have a strong resistance the first time it is pressed. The resistance will decrease with each subsequent press of the pedal.

5-2.4 CRAFT DRIVE

(1) Brake Calipers, Brake Pads, Brake Bleeding, Service Brake Rotors, FWD/AFT Wheel Motor Upper and Lower Drive Assy Mounting Brackets, Wheel Gasket, Upper/Lower Bearing Cover Plates

a. Driving the craft 10 mph and lightly using the brakes to stop the craft burnishing the brakes. Repeat this process ten times in rapid succession.

b. Park the craft, secure the engine, and chock the wheels. Inspect the rotors for marks left by the brake pads.

Acceptance criteria: The brake rotor shall exhibit burnishing marks from the brake pads.

c. After stopping the craft and chock the wheel, check the hydraulic oil leakage on the wheel and wheel braking system.

Acceptance criteria: The wheel and wheel braking system shall not the hydraulic oil leakage.

d. Verify that the wheel drive assemblies have no malfunctions.

Acceptance criteria: The wheel drive assemblies shall have no malfunctions.

5-3 LWC and S246 shall sign on the last page of TEST DATA SHEET upon completion of the test.

5-4 Return system/equipment to readiness conditions, as required.

6. TEST PROCEDURE COMPLETION

6-1 Sign the test procedure coversheet to confirm that the test procedure has been fulfilled and completed and return it to S246 for review and approval.

WN#: 57078-RS01-L013 SSP#: SASN-003-26

7. REMARKS

WN#: 57078-RS01-L013 SSP#: SASN-003-26

TEST DATA SHEET

5-2 AT LAND TEST

TEST CONDITION STEP ACCEPTANCE CRITERIA RESULT

5-2.1

12 & 24 VDC ON

(1) Emergency Service Brake Pump & Motor with Solenoids

The emergency service brake pump is operating properly with no leaks detected. □ SAT / □ UNSAT

5-2.2

ENGINE RUNNING

(1) Service Brake Tail Light Hydraulic Pressure Switch, Service Brake Hydraulic Pressure Transducers, Accumulators

a. The IQAN display shall not indicate

“SERVICE BRAKE PRESS. LOST! SLOW

CRAFT TO A STOP!.

□ SAT / □ UNSAT

b. An accumulator charging sound will be made. □ SAT / □ UNSAT

(2) Brake Pedal Control Valves The gauges shall read 2,000 ±100 psig. Actual reading: ___________ psig

□ SAT / □ UNSAT

5-2.3

SECURE THE ENGINE

(1) Accumulators The brake pedal shall a string resistance the first time it is pressed. The resistance will decrease with each subsequent press of the pedal.

□ SAT / □ UNSAT

5-2.4

CRAFT DRIVE

(1) Brake Calipers, Brake Pads, Brake Bleeding, Service Brake Rotors, FWD/AFT Wheel Motor Upper and Lower Drive Assy Mounting Brackets, Wheel Gasket, Upper/Lower Bearing Cover Plates

b. The brake rotor shall exhibit burnishing marks from the brake pads. □ SAT / □ UNSAT

c. The wheel and wheel braking system shall not the hydraulic oil leakage. □ SAT / □ UNSAT

d. The wheel drive assemblies shall have no malfunctions. □ SAT / □ UNSAT

5-4 COMPLETION OF THE TEST

RESPONSIBILITY PRINT NAME, SIGN & DATE

LWC

S246