1. CH-47D Cargo Handling System

2. Cargo Handling

3. Terminal Learning Objective (TLO)
Action: Describe the components, operational characteristics, functions, limitations and emergency procedures of the CH-47D Cargo Handling Systems
Conditions: In a classroom, and given a student handout
Standards: Correctly answer in writing, without reference, four of six questions pertaining to components, operational characteristics, limitations, functions, and emergency procedures of the CH-47D Cargo Handling System, IAW TM 1−1520−240−10 (Operator’s manual) and the student handout

4. Terminal Learning Objective (TLO) – (Cont.)
Safety Requirements: None
Risk Assessment Level: Low
Environmental Considerations: None
Evaluation: Each student will be evaluated on this block of instruction during the third written examination. This will be a criterion type examination requiring a GO on each scored unit. You will have 90 minutes for the exam

5. Learning Step/Activity #1
Describe the components, operational characteristics, functions, emergency procedures and limitations of the Cargo Ramp/Door

6. Cargo Ramp/Door Located: Operated: Primary Use: Maximum Weight:
Sta.486
Operated:
Hydraulically
Primary Use:
Loading and Unloading
Personnel and Cargo
Maximum Weight:
3,000 LBS or 300 PSF
Cargo Door:
Jettisonable
Provide Closure
Contains a emergency exit panel

7. Components – Cargo Ramp

8. Ramp Control Valve Located: Purpose: Between Sta.482 and 502 R/H side
Three position:- UP
STOP
DN (Down)
Purpose:
Used to Stop the Ramp between:-
Full UP
Full Down

9. Actuating Cylinders Located: Contains: Mechanical locks Prevents:-
L/H and R/H side of the Ramp
Hydraulically
Contains:
Mechanical locks
Prevents:-
Accidental opening
Keeping ramp closed
Hydraulically unlocked

10. Cargo Door Actuated Motor
Located: Inside the ramp
Contains: Reversible motor (Extend and Retract)
Controlled: Sequence valve

11. Sequence Valve Located: Use: Purpose: R/H side Sta.490
Mechanically operate ramp
Sequences:-
Extension
Retraction
Purpose:
Keep cargo door:-
Retracted
Do not press Valve Plunger
Do not Unlock unless ramp is Down

12. Pressure Actuated Valve
Purpose:
Stop ramp operation:-
Extending/Retracting cargo door
Red plunger:-
Manual override
Use ONLY if ramp fails to operate normally

13. Ramp PWR Switch Located: Overhead hydraulics panel
Switch: Three position:-
OFF ON
EMERG (Emergency)

14. Utility Return Control Module
Located:
L/H side Sta.534
Purpose:
Central collection point
Transfer cylinder:-
Holds fluid (Actuators)
Indication:
Filter indicator

15. Emergency Utility Press Valve
Located:
R/H Side Ramp Sta.527
Purpose:
Operate ramp:-
Pressure from APU Start Accumulator

16. Learning Step/Activity #2
Describe the components, limitations, emergency procedures and operational characteristics of the Triple Cargo Hook system

17. Triple Cargo Hook System
Page: 5-5-1
Rated:
Center – 26,000 LBS
Forward – 17,000 LBS
Aft – 17,000 LBS
Tandem – 25, 000 LBS (Fwd and Aft Hooks)

18. Center Cargo Hook Mounted: Sta.331 (Inside the Cabin Escape Hatch)
Beam Assembly: Rotates, Pivots and allows the Hook to Swing
Air Charge: Minimum – 2,000 PSI
Types of opening: Hydraulically, Pneumatically, and Manually
Manual Release: Entry

19. Forward and Aft Cargo Hook
Rated:
17,000LBS
88° degrees (Fwd and Aft)
58° degrees (Left and Right)
Located: Sta.249 Sta.409
Accessible:
Ground Personnel
Hook load LBS
Types of Release:
Electrically (Normal/Emergency)
Manually

20. Cargo Hook Control Panel
MSTR (Master) Switch:
MSTR RESET
OFF
ARM
Hook Switch:
Five position
Switch position determines Hook
Hook Load Lights:
Fwd and Aft
Illuminate – 150 LBS
Sensors

21. Hoist Operator's Control Panel
Located: R/H side Sta.320
Three Position: ARM, RMTE (Remote) and RESET
Activated: MASTER switch – ARM

22. Master Caution/Advisory Panel
Purpose: Indicates respective Hook – Open
Turn lights off:- Master switch – RESET
Dual Hook Fault Lights:
Indicates loss of electrical power
Fwd and Aft Hook – Manually

23. Jettisoning External Cargo
Primary Method:
CARGO HOOK EMERG switch – REL ALL
Alternate Method:
Forward, Center and Aft hook release lever – Pull aft
Page: 9-2-1

24. Learning Step/Activity #3
Describe the components, limitations and operation of the Cargo Winch/Rescue Hoist system

25. Cargo Winch and Rescue Hoist System
Located:
Heater closet (Compartment)
Hydraulic motor
Mechanical brake
Cable length:-
150 feet/1/4 inch (Steel)
Purpose:
Aid loading/Unloading – Cargo
Hoist loads – Thru rescue hatch
Accessories Storage:
Pulleys
Cable/Hook quick disconnect

26. Cable/Hook Quick Disconnect
Cover Guard
Cover Guard Cap
Quick Disconnect Device
Guard Cover – Must be installed

27. Selector Lever Mounted: Use: Normal Operation:
Top of the winch assembly
Use:
Select Mode of operation
RESCUE
CARGO
Normal Operation:
No.1 DC Bus
No.1 PDP

28. Cable Cutter Arming Device
Located:
Back wall Sta.95
Arming Device:
Installed
Winch – CARGO position

29. Maximum Load
12,000 LBS with the aid of pulleys

30. Straight Line Pull
3,000 LBS

31. One (1) Pulley Attached
6,000 LBS

32. Two (2) Pulley Attached
9,000 LBS

33. Additional Pulleys
12,000 LBS

34. Winching Out

35. Operators Manual Caution
Do not exceed 3,000 pounds single line pull. Overload will result in the winch overload switch actuating to stop the winch
Page: 4-3-8

36. Winching Operation Reel in speed: Remove slack: Limit switches:
Single line pull – 0 to 20 feet per min (Cargo mode)
Remove slack:
Applying loads
Limit switches: IN
OUT
Provide slack:
Load is secure
INTERNAL Load

37. Operators Manual Caution
To prevent dangerous electrical shock to personnel being hoisted, the cable must touch the Ground or Water prior to contacting personnel
Page:

38. Rescue Operation Rescue Mode – Hoisting light loads
Selector Lever – RESCUE Position
Cargo Hook – Removed
Structural Limit – 600 LBS max
Reel in Speed – 0 to 100 feet per min
In Limit Switch

39. Cable Cutter Device Cable Cutter Device: Pulleys: Must be installed
Sta.331 (Cutter device)

40. Hoist Controls Located: Cockpit overhead panel
HOIST MASTER switch – REMOTE, OFF and PLT
Rotary Control Switch – IN/OUT
Cable Cutter Switch – CABLE CUT and ON (Red guarded)

41. Hoist Operator's Panel Located: R/H side Sta.320 CARGO HOOK RELEASE
CABLE CUTTER (Red guarded)
Toggle Switch – Winch cable IN/OUT
PRESS TO TALK
Winch Arming Trigger

42. Winch Control Valve Located: Use: Sta.120 L/H side Emergency
Loss of electrical power
Break shear wire
Push in plunger
Rotate knurled knob
Return knob – Center (OFF)

43. Operators Manual Caution
When the winch is operated in emergency mode, the cable limit switches are disabled
Page: 4-3-9

44. Any Question?

45. Check on Learning
What must you do to cause the ramp to raise or lower if it fails to operate normally?
Press the red button on the Pressure Actuated Valve
What is the primary method of jettisoning external cargo?
EMER REL ALL switch
What caution must be observed when operating the cargo winch in the emergency mode?
Cable Limit Switches are inoperative
How is the ramp kept closed (up) and locked?
Mechanical Locks

46. Summary

47. Don’t Forget: EP’s and Limitations!