Atch_10_-_T.O._1H-60(H)G-2-1CL-7.PDF

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Published under authority of the Secretary of the Air Force

TECHNICAL MANUAL

CHECKLIST

TO 1H-60(H)G-2-1CL-7

1 DEC 2011

WASH/RINSE PROCEDURES

USAF SERIES

HH-60G SERIES HELICOPTER

CHANGE 4 - 1 DECEMBER 2015

Basic and all updates have been merged to make this a complete publication

INSERT LATEST CHANGED PAGES.

DESTROY SUPERSEDED PAGES.

NOTE: The portion of the text affected by the change is indicated by a vertical line in the outer margin of the page. Changes to illustrations are indicated by miniature pointing hands. Changes to wiring diagrams are indicated by shaded areas.

LIST OF EFFECTIVE PAGES

A Change 4 USAF

*Zero in this column indicates an original page

Dates of issue for original and changed pages are:

TOTAL NUMBER OF PAGES IN THIS MANUAL IS 36, CONSISTING OF THE FOL-

LOWING:

Page *Change Page *Change No. No. No. No.

Title A i ii Blank iii-iv v - vii viii Blank 1-1 1-2 1-3 1-4 -1-7 1-8 1-9 -1-11 1-12 - 1-15 1-16 1-17 - 1-18 1-19 1-20 1-21 1-22 - 1-23

1-24 1-25 1-26 Blank

TO 1H-60(H)G-2-1CL-7

Original . . . . . . . . . . . . . . . . . . . . . . . . . 0 . . . . . . . . . . . . . . . . . . . . . 1 December 2011 Change . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . . . . . . .1 August 2014 Change . . . . . . . . . . . . . . . . . . . . . . . . . 2 . . . . . . . . . . . . . . . . . . . . 15 November 2014 Change . . . . . . . . . . . . . . . . . . . . . . . . . 3 . . . . . . . . . . . . . . . . . . . . . . . . . 15 June 2015 Change . . . . . . . . . . . . . . . . . . . . . . . . . 4 . . . . . . . . . . . . . . . . . . . . . 1 December 2015

TO 1H-60(H)G-2-1CL-7

TABLE OF CONTENTS

Chapter Page

FOREWORD................................................................................ iii

SAFETY SUMMARY...................................................................v

1 HH-60G WASH/RINSE PROCEDURES ................................. 1-1

PREPARATION ................................................................. 1-1

EXTERIOR WASH ............................................................ 1-4

INTERIOR CLEANING PROCEDURES ......................... 1-8

RINSE PROCEDURES .................................................... 1-10

POST-WASH REQUIREMENTS.................................... 1-12

INTERIOR CORROSION PREVENTION PROCE-

DURES......................................................................... 1-14

CORROSION INSPECTION AND LUBE PROCE-

DURES (CABIN SECTION) ...................................... 1-16

EXTERIOR CORROSION PREVENTION PROCE-

DURES......................................................................... 1-18

CORROSION INSPECTION AND LUBE PROCE-

DURES (TRANSITION SECTION)........................... 1-20

CORROSION INSPECTION AND LUBE PROCE-

DURES (TAIL CONE SECTION) ............................. 1-21

CORROSION INSPECTION AND LUBE PROCE-

DURES (TAIL PYLON SECTION) ........................... 1-22

CORROSION INSPECTION AND LUBE PROCE-

DURES (MAIN ROTOR PYLON SECTION)........... 1-24

i/(ii blank)

FOREWORD

1. GENERAL.

This checklist is a step-by-step guide in abbreviated form for use as a reference to ensure accomplishment of selected tasks by a predeter-mined sequence procedure. The intent of this checklist is to eliminate the probability of omission of a step in the accomplishment of the intended task. The procedures contained herein are presented in the shortest practical form for use by qualified personnel and are not intended to provide full technical instructions. This checklist pro-vides, in an abbreviated form, procedures for washing/rinsing and corrosion inspection of HH-60G helicopters. These procedures are derived from, but do not replace, the detailed procedures contained in Technical Orders (TO). When malfunctions occur reference to the TO shall be made.

2. SCOPE.

This checklist does not contain all of the safety precautions, notes, cautions, or warnings in AFOSH regulations, technical orders, and local operating instructions. It is the responsibility of all personnel involved in wash operations to be thoroughly familiar with the appli-cable instructions. It is not intended that steps, notes, cautions, and warnings be read verbatim, so long as the intent of each step, note, caution, and warning is understood and accomplished. In the case of a conflict between the basic technical order and this checklist, the basic technical order shall take precedence. This checklist will be used by all task-certified personnel. This checklist does not delete any safety requirements nor introduce any unsafe procedures. All parent techni-cal order procedures will be followed. No additional tools or equip-ment are required.

3. TECHNICAL REFERENCES.

a. AFOSH Standard 91-203

b. Deleted

c. TO 00-20-1

d. TO 1-1-691

Change 4 iii d1. TO 1-1-689-3

e. TO 1H-60(H)G-2-1

f. TO 1H-60(H)G-2-6

g. TO 1H-60(H)G-2-9

h. TO 1H-60(H)G-23

i. TO 1H-60(H)G-6WC-5 iv Change 4

SAFETY SUMMARY

1. GENERAL SAFETY INSTRUCTIONS.

This manual describes processes that may cause injury or death to personnel or damage to equipment if not properly followed. This safety summary includes general safety precautions and instructions that must be understood and applied during operation and maintenance to ensure personnel safety and protection of equipment. Prior to performing any task, the WARNINGs, CAUTIONs and NOTEs included in that task shall be reviewed and understood.

2. WARNINGS, CAUTIONS, AND NOTES.

WARNINGs and CAUTIONs are used in this manual to highlight operating or maintenance procedures, practices, conditions or statements which are considered essential to the protection of personnel (WARNING) or equipment (CAUTION). WARNINGs or CAUTIONs immediately precede the step or procedure to which they apply.

WARNINGs and CAUTIONs consist of four parts, heading (WARNING or CAUTION), a statement of the hazard, minimum precautions, and possible result if disregarded. NOTEs are used in this manual to highlight operating or maintenance procedures, practices, conditions or statements which are not essential to protection of personnel or equipment. NOTEs may precede or follow the step or procedure, depending upon the information to be highlighted. The headings used and their definitions are as follows:

WARNING

Highlights an essential operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in injury to, or death of, personnel or long-term health hazards.

v

CAUTION

Highlights an essential operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in damage to, or destruction of, equipment or loss of mission effectiveness.

NOTE

Highlights an essential operating or maintenance procedure, condition, or statement.

3. SAFETY PRECAUTIONS.

The following general safety precautions shall be observed while performing procedures in this manual according to AFOSH Standard 91-100 and AFOSH Standard 91-501.

WARNING

• To prevent buildup of static electricity, ensure helicopter remains grounded during cleaning operations.

• Use only approved cleaning compounds. Use all required protective equipment when working with cleaning compounds and solvents.

• All protective clothing and equipment such as rubber gloves, goggles or face/eye shields, apron, or wash suit and boots, or its equivalent, shall be worn to provide adequate protection for personnel. Wash rack floors/aprons and aircraft surface are often covered with chemical compounds. Personnel boots used in these areas shall be of the type that provides adequate traction for the existing conditions.

• Safety harness, if available, will be used when climbing on top of the aircraft.

vi

CAUTION

• To prevent damage to helicopter, do not use high-pressure air, high-pressure water, or steam cleaning equipment.

• Do not spray water directly on electrical actuators (trim, stabilator, and tail wheel), fire extinguisher directional valve, backup pump motor, main and APU generators, mixer bellcranks, or FLIR TFU while cleaning. Cover these assemblies with barrier material, MIL-B-131, and secure with masking tape, PPP-T-42.

• When cleaning main rotor head, do not allow cleaning solution to remain on elastomeric bearings.

• Do not allow cleaning solvents or corrosion preventive compounds to get on drive shaft bearings.

vii/(viii blank)

CHAPTER 1

HH-60G WASH/RINSE PROCEDURES

PREPARATION

NOTE

One briefing will satisfy the requirements when the same team will be involved in multiple tasks.

1. Supervisor will brief each member prior to washing the aircraft on the following:

a. Each member’s position and responsibility

b. Safety precautions

c. Proper wear and usage of all personal protective equipment

2. Position aircraft on wash rack

3. Ensure aircraft is properly chocked

4. Ensure that aircraft is statically grounded

5. Position a serviceable fire bottle

6. Disconnect aircraft battery and cover connector and terminals with tape

7. Ensure tail wheel lock pin is engaged

8. Install wheel covers

1-1

PREPARATION - Continued

9. Install pitot static tube covers

10. Ensure engine intake and APU exhaust plugs are installed

11. Close all doors, windows, panels, and cowlings as required

12. Cover nose door vent, transition section vent, heater air inlet, APU air inlet vents, APU door, and vent on belly (between PLS antenna) with tape (Federal Specification Number PPP-T-42)

13. Cover inspection holes on main rotor hub using tape (Federal Specification Number PPP-T-42). There are four 2-inch holes on each hub arm

14. Cover mixing unit and electric actuators/equipment (trim, backup pump motor, main and APU generators, tail lock pin actuator, fire extinguisher directional control valve, and lower stabilator actuator rod) with barrier material MIL-B- 131 and secure with tape, Federal Specification Number

PPP-T-42

15. Remove FE and Gunners seat

16. Remove intermediate and tail gearbox forward cowling

16A. Remove ALQ-144 Transmitter

IAW 1H-60(H)G-2-13

1-2 Change 1

Change 2 1-3

PREPARATION - Continued

17. Document aircraft AFTO Form 781A as follows:

a. Red Dash – Aircraft wash due.

(See TO 1-1-691 for wash interval requirements.)

b. Red X – Tape and barrier material installed for wash

c. Red X – Battery disconnected for wash

d. Red X – Post-wash FOD inspection required

e. Red X –FLIR TFU cables removed for corrosion control

f. Red X – FE and Gunner seats removed for wash

g. Red X – IGB and TGB cowling removed for wash

h. Red Dash– DC Electrical System requires operational check due to re-connection of battery

i. Red Dash – ALQ-144 system requires operational check due to transmitter removal

j. Red Dash – FLIR system requires operational check due to TFU cable removal

k. Red Dash – Aircraft requires post-wash cleanliness inspection

l. Red Diagonal – Aircraft requires post-wash lube

m. Red Dash – Aircraft requires lube inspection

EXTERIOR WASH

CAUTION

• On aircraft equipped with Breeze-Eastern Hoists, do not lubricate hoist cable. Lubricating cable can cause the friction roller to absorb the lubricant and cable tensioner to malfunction.

• Damage to elastomeric bearing will result if cleaning solution is not rinsed off. Cleaning solution will damage rubber. Do not allow cleaning solution to remain on elastomeric bearings.

NOTE

• Exterior aircraft cleaning procedures are outlined in TO 00-20-1, TO 1-1-691, TO 1H-60(H)G-2-1, and TO 1H- 60(H)G-23.

• Wash airframe from the bottom to the top.

• Cleaning will be less effective if alkaline water-base solution is allowed to dry. To prevent solution from drying, have rinse water readily available.

1. Wash hydraulic compartment using ethyl alcohol (A-A- 53880). Clean mixer, primary and SAS servos, and hydraulic deck

2. Wash and thoroughly clean all exterior surfaces as follows:

a. Fuselage

b. Main and tail rotor heads and blades

c. Powertrain

d. Cargo hook

1-4

EXTERIOR WASH - Continued

e. Main and tail landing gear

3. Freshwater rinse both engine compartments and clean debris from engine bays. Do not spray electrical connectors in the engine compartment

4. Hand clean or spray wash main transmission, input and accessory modules, and intermediate and tail gearboxes

NOTE

Wash airframe from the bottom to the top. Wash rotor blades beginning at the lowest point.

5. Wash and thoroughly clean all exposed exterior surfaces of the helicopter

CAUTION

To prevent damage to equipment, do not use P-D- 680, Type III on aircraft tires.

6. Clean tires with tap water using 2 ounces of detergent P- D-410 per gallon of water

1-5

7. Ensure that all soap and cleaning compounds or chemicals are removed entirely from all cleaning surfaces. Rinse with high volumes of water (using continuous moving spray aimed at a 40° angle to the surface) at approximately 4 gallons a minute and an operating pressure of 150 psi, not to exceed 210°F

CAUTION

Do not expose FLIR turret (TFU) to high-pressure spray. If spray is unavoidable, TFU should be covered.

8. Wash painted surfaces of the TFU with MIL-PRF-85570 and rinse immediately

CAUTION

Cleaning TFU window with material other than recommended may damage the window.

9. Clean TFU window with isopropyl alcohol (TT-I-735) and cotton pads. Start at center and wipe outward with a circular motion to edge of window

1-6

WARNING

Eye protection will be worn when using compressed air.

10. Dry interior and exterior surfaces of cargo hook with compressed air not to exceed 30 psi

1-7

INTERIOR CLEANING PROCEDURES

CAUTION

• Do not spray cockpit or associated electronics with water.

• Do not use high volume of water in the interior of the aircraft or allow water to enter avionics components while rinsing interior areas of the aircraft. Do not direct-ly spray the ALE-47 chaff/flare buckets.

1. Clean debris from pilot’s seat, copilot’s seat, cockpit door map compartments, and all cabin troop seats

2. Clean debris and loose soil from cockpit, nose avionics compartment and cargo compartments

3. Rinse troop seats if exposed to saltwater

4. Oily areas on cockpit floor may be cleaned by wiping area with a clean cloth dampened with solvent solution MIL-PRF-85570 Type II. Mix solutions IAW TO 1-1-691. Immediately dry area with a clean rag

1-8 Change 1

INTERIOR CLEANING PROCEDURES - Continued

5. Hand clean cargo floor area with a rag or soft bristled brush and cleaning solution MIL-PRF-85570 Type II (preferred) or MIL-PRF- 85570, Type I. Rinse by wiping the same area with a clean rag and clean water then wiping dry

6. Ensure all standing water and cleaning solutions are removed from the interior of the aircraft

7. Rinse all accessible areas of the tail rotor pylon with freshwater

1-9

RINSE PROCEDURES

1. Ensure static ground wire is installed

2. Ensure serviceable fire extinguisher is available

3. Install protective plugs and covers

4. Close crew doors and windows. Leave the doors open for interior rinsing

5. Open all required access panels and cowlings

6. Position rinse cart as required;

upwind if engine driven

NOTE

If Bird Bath was utilized by aircrew prior to shutdown, skip step 7.

7. Rinse exterior of airframe including tail rotor and main rotor blades starting at the highest point and moving down. (Be sure belly and cargo hook areas get extra attention)

1-10

RINSE PROCEDURES - Continued

CAUTION

On aircraft equipped with Breeze-Eastern hoists, do not lubricate hoist cable. Lubricating can cause the friction roller to absorb the lubricant and cable tensioner to not function properly.

8. Reel out cable to its entire length and rinse with freshwater. Inspect the cable

IAW TO 1H-60(H)G-2-6

9. Thoroughly rinse cabin interior with freshwater. (Be sure to remove all water from floor.)

10. Expand legs of forest penetrator. Inspect for corrosion, security and freedom of movement. Rinse thoroughly with freshwater and allow to air dry and lubricate

11. Close and secure all access panels, doors and cowlings

1-11

1-12

POST-WASH REQUIREMENTS

1. Remove tape, barrier material, and protective covers as required

2. Perform after-wash inspection

IAW TO 1H-60(H)G-6WC-5

3. In addition to this inspection, inspect the following areas for corrosion:

a. Pitot static drains and area

b. Surface around all antennas and mounting

c. Gunners’ window hand-holds surface area

d. Input module to main module webbing for water entrapment

e. Intermediate Gearbox for water entrapment

f. Upper end of EGMS pintle arm for water entrapment

4. Clean all aircraft windows

5. Wipe exposed portions of primary servo push rods with a clean rag dampened with hydraulic fluid

6. Wipe exposed pistons of main and tail landing gear assemblies with a rag dampened with hydraulic fluid

7. Deleted.

Change 2

1-13Change 2

POST-WASH REQUIREMENTS - Continued

8. Deleted.

9. Visually inspect APU fire extinguisher line for trapped water where it attaches to the turbine heat shield

10. Deleted.

11. Connect battery and perform DC system operational check

IAW TO 1H-60(H)G-2-9

12. Close/reinstall all doors, panels, and cowlings as required

13. Deleted.

1-14 Change 2

INTERIOR CORROSION PREVENTION PROCEDURES

1. Inspect the following areas for corrosion, proper operation, and cleanliness. Clean old lube from part as well as possible using a clean rag. Apply a thin film of Corrosion Prevention Com-pound (CPC) MIL-PRF-81309 Type II or equivalent and spray with Lubrication Oil (LO) MIL-PRF-32033. Apply lube with-out disassembly and wipe away excess. In desert environments, use only a dry film lubrication or any other suitable substitute.

Inspect, remove corrosion and treat/preserve avionics compo-nents/hardware IAW TO 1H-60(H)G-23, (Chapter 10) and 1-1- 689-3.

a. Nose compartment latches and hinges

b. Cockpit door hinge rod ends and bearings

c. Pilot/Copilot seat tracks and hardware (four places)

d. Pilot/Copilot seat adjustment cables

e. All seat belt assemblies and attachment points

f. Pilot/Copilot door emergency release mechanism, handle mechanism, and door lock

g. Left/Right door gunner’s windows upper/lower tracks and hold open mechanism

h. Remove pip pins from H- Bar/Fries Bar assembly, spray with CPC, and actuate pins several times to ensure adequate lubrication

i. Internal auxiliary tanks restraint hardware, latches, and ratchet devices

Change 2 1-15

INTERIOR CORROSION PREVENTION PROCEDURES -

Continued

j. Cabin door lock and latch mechanism

k. Cargo tie down points

2. Inspect windshield wiper hinge pin for corrosion, proper operation, and cleanliness.

Apply a thin coat of Cleaner, Lubricant and Preservative

(CLP), MIL-PRF-63460

(Break-Free), and actuate several times to ensure coating

3. Clean P1077, P1078, P761, and P762 FLIR cable connectors.

Clean inside of connectors with isopropyl alcohol and canned air such as Power Duster by Skilcraft (NSN 7930-01-398- 2473)

4. Deleted.

5. Repeat step 3 for TFU, JI, J2, J761 and J762 connector

6. Install TFU cables. Spray outer shell of all connectors with MIL-PRF-85054, Type I or II

CORROSION INSPECTION AND LUBE PROCEDURES (CABIN

SECTION)

1. Inspect the following areas for corrosion, proper operation, and cleanliness. Clean old lube from parts with clean rag. Apply a thin film of Corrosion Preventive Compound (CPC) MIL-PRF- 81309, Type II or equivalent and spray with Lubrication Oil (LO) MIL-PRF-32033. Apply lube without disassembly and wipe away excess. In desert environments, use only a dry film lubrication or suitable substitute. Inspect, remove corrosion and treat/preserve avionics components/hardware IAW TO 1H- 60(H)G-23, (Chapter 10) and 1-1-689-3.

a. Left/Right door gunner’s window hold open mechanism

b. Drag beam airframe attachment points

c. Step access panel hinge

d. Step pivot point

e. All seat belt assemblies and attachments

f. Internal Aux tanks restraint hardware, latches, and cabin attachment points

g. Cabin door lock and latch mechanism

h. Cargo tie-down points

i. Engine platform hard-point bearing mounts, latches and receivers

NOTE

Cargo hook requires removal to complete airframe fitting lubrication.

j. Cargo hook bay and hook assembly, if installed

1-16 Change 1

CORROSION INSPECTION AND LUBE PROCEDURES (CABIN

SECTION) - Continued

k. Lubricate fittings at cargo hook mating surface

2. Inspect exposed chrome on main landing gear struts for corrosion and cleanliness.

Apply hydraulic fluid MIL- PRF-83282 with soft lint-free cloth

1-17

EXTERIOR CORROSION PREVENTION PROCEDURES

1. Apply Corrosion Preventive Compound (CPC), MIL-PRF- 81309, Type III (preferred) or MIL-PRF-81309, Type II, Class II (alternate) to surfaces of tail rotor pitch beam retaining nut and washer

2. Apply CPC, MIL-PRF-81309, Type II to the following items:

a. Windshield wiper arms

b. Left/Right main landing gear drag beam bushings

CAUTION

To prevent elastomeric deterioration, do not use any petroleum-based cleaners or solvents on stabilator elastomeric bearing. Unintentional application or spillage of any fluid other than water on this bearing must be cleaned thoroughly as soon as possible with soap and water.

c. Left/Right stabilator fold hinges

d. Stabilator center box to airframe attachment lugs

e. Tail pylon fold hinges

f. Tail wheel manual locking lever and hardware

g. Tail wheel yoke and fork assemblies

h. Main rotor spindle balance washers and hardware

1-18

Change 2 1-19

EXTERIOR CORROSION PREVENTION PROCEDURES -

Continued

i. Droop stop and anti-flap assemblies

j. Main rotor pylon sliding cowling rails and pins

k. Main rotor bifilar weights

l. Lubricate bifilar washers and spacers with grease MIL- PRF-81332 (primary) or.

630AA (alternate). In dry sandy climates use dry film lube MIL-L-23398

1-20 Change 3

CORROSION INSPECTION AND LUBE PROCEDURES

(TRANSITION SECTION)

Inspect the following areas (to include hinges and all attaching hard-ware) for corrosion, proper operation, and cleanliness. Clean old lube from part as well as possible using a clean rag. Apply a thin film of Corrosion Preventive Compound (CPC) MIL-PRF-81309, Type II or equivalent and spray with Lubrication Oil (LO) MIL-PRF-32033.

Apply lube without disassembly and wipe away excess. In a desert environment, use only dry film lubrication or a suitable substitute.

Inspect, remove corrosion and treat/preserve avionics components/ hardware in accordance with TO 1H-60(H)G-23, (Chapter 10) and 1-1-689-3.

1. Avionics bay access door

2. Pressure refueling door

3. Gravity refueling doors

4. Step compartment doors

5. Main fuel tank sump doors

CORROSION INSPECTION AND LUBE PROCEDURES (TAIL

CONE SECTION)

1. Inspect the following areas for corrosion, proper operation, and cleanliness. Clean old lube from part as well as possible using a clean rag. Apply a thin film of Corrosion Preventive Com-pound (CPC) MIL-PRF-81309, Type II or equivalent and spray latches and hinges with Lubrication Oil (LO) MIL-PRF-32033.

Apply lube without disassembly and wipe away excess. In a desert environment, use only dry film lubrication or a suitable substitute. Inspect, remove corrosion and treat/preserve avion-ics components/hardware IAW TO 1H-60(H)G-23, (Chapter

10) and 1-1689-3.

a. Tail drive shaft covers

b. Tail pylon fold hinge bolts

c. Tail wheel manual locking lever

d. Tail wheel yoke and fork assemblies

2. Inspect wheel lock pin for corrosion, proper operation, and cleanliness. Apply thin film of MIL-PRF-81322 (WTR Grease)

3. Inspect exposed chrome on tail strut for corrosion and cleanliness. Wipe down with

MIL-PRF-83282

4. Inspect lower UHF/TACAN antenna, strobe power supplies, and connectors for corrosion. Treat corrosion with

TO 1H-60(H)G-23

Change 1 1-21

PYLON SECTION)

CAUTION

Do not allow any lubricant to contact the elastomeric bearings. Any contact may seriously degrade the life of the rubber in the bearing. If contact occurs, rinse immediately with clean soapy water.

1. Inspect exterior surfaces of tail rotor pitch beam retaining nut and washer for corrosion and cleanliness. Apply a thin film of Corrosion Preventive Compound (CPC) MIL-PRF- 81309, Type II or equivalent

2. Inspect the following areas for corrosion, proper operation, and cleanliness. Clean old lube from part as well as possible using a clean rag. Apply thin film of Corrosion Preventive Compound (CPC) MIL-PRF-81309, Type II or equivalent, and spray latches and hinges with Lubrication Oil (LO) MIL-PRF- 32033. Apply lube without disassembly and wipe away excess. In a desert environment, use only dry film lubrication, or a suitable substitute.

a. Lube stab hinge, lock, and all other mount points

b. Stab position indicator follow up arm attachment

c. Tail drive shaft covers hinges and fasteners

1-22

PYLON SECTION) - Continued

3. Inspect stab actuator exposed chrome piston for corrosion, proper operation, and cleanliness. Apply lubricant MIL-PRF-83282 and wipe away excess

1-23

CORROSION INSPECTION AND LUBE PROCEDURES (MAIN

ROTOR PYLON SECTION)

1. Inspect the following areas for corrosion, proper operation, and cleanliness. Clean old lube from part as well as possible using a clean rag. Apply a thin film of Corrosion Preventive Com-pound (CPC) MIL-PRF-81309, Type II or equivalent, and spray latches and hinges with Lubrication Oil (LO) MIL-PRF- 32033. Apply lube without disassembly and wipe away excess.

In a desert environment, use only a dry lubrication or a suitable substitute. Inspect/remove corrosion and treat/preserve avion-ics components/hardware IAW TO 1H-60(H)G-23, (Chapter

10) and 1-1-689-3.

a. Main rotor pylon sliding access panel rails, pins (six places) and receivers (six places)

b. Oil cooler access doors

c. ALQ-144 access door

d. APU access door

e. Main module forward bridge mount dowel pin

2. Thoroughly dry the following areas and inspect the areas for corrosion, and integrity of sealant. Apply a thin film of CPC MIL-PRF-81309, Type II or equivalent.

a. Main generator mounting flanges

b. Accessory module mounting flanges and hardware

c. Input module mounting flanges and hardware

d. Accessory module chip detector resistor mounting clips

1-24 Change 1

CORROSION INSPECTION AND LUBE PROCEDURES (MAIN

ROTOR PYLON SECTION) - Continued

CAUTION

Do not allow any lubricant to contact the elastomeric bearings. Any contact may seriously degrade the life of the rubber in the bearing. If contact occurs, rinse immediately with clean soapy water.

3. Inspect the following areas for corrosion, proper operation, and cleanliness. Touch up Dry Film Lubricant (DFL) MIL-L- 23398 as required to the following areas:

a. Spindle balance washer/nuts

b. Droop stop and anti-flap assemblies

4. Inspect bifilar for corrosion and cleanliness. Apply Cleaner, Lubricant, Preservative (CLP) MIL-PRF- 63460

5. Inspect chrome pistons on primary hydraulic servos for corrosion and cleanliness.

Wipe down with hydraulic fluid MIL-PRF-83282

1-25/(1-26 blank)