757 
MAINTENANCE MANUAL
STOP FITTING 
PUSHROD END 
FLUSH 
BMS 3-33 
(2 LOCATIONS) 
3
FWD 
OPERATING MECHANISM (SHOWN WITH THE DOOR CLOSED) 
6 POINTS
EXTERIOR HANDLE 
D 
PUSHROD INTERIOR HANDLE 
PUSHROD 
LATCHING MECHANISM 4 POINTS 
3 
CLOSE AND LATCH THE DOOR BEFORE 
YOU GET ACCESS TO THE LUBRICATION
E 
FITTINGS ON THE UPPER LOCK PUSHROD. 
No. 1 and No. 2 Cargo Door Lubrication Figure 301 (Sheet 4) 
STOP FITTING PUSHROD END FLUSH 
BMS 3-33 (2 LOCATIONS) 
TORQUE TUBE PUSHROD END FLUSH 
BMS 3-33 (2 LOCATIONS) 
PUSHROD END FLUSH 
BMS 3-33 (4 LOCATIONS) 
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757 MAINTENANCE MANUAL
 NO. 3 CARGO DOOR - SERVICING
____________________________
 TASK 12-21-24-643-001
 1. Lubricate the No. 3 Cargo Door
______________________________
 A. Consumable Materials
 (1) D00013 Grease, MIL-G-23827
 B. Access
 (1)  Location Zone
 823 No. 3 Cargo Door
 C. Procedure - Lubricate the No. 3 Cargo Door
 S 643-004
 CAUTION: BE CAREFUL WHEN YOU DISENGAGE THE GREASE GUN FROM THE
_______ LUBRICATION FITTING. DAMAGE TO THE LUBRICATION FITTING CAN EASILY OCCUR.
 (1) Lubricate the No. 3 cargo door as shown in Fig. 301.
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 ú ú 01 Page 301 ú Dec 20/89 
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757 
MAINTENANCE MANUAL
NO. 3 CARGO DOOR SEE A 
LATCH ROLLER 
(ON DOOR FRAME) FWD INBD
SEE B 
NO. 3 CARGO DOOR A 
CUTOUT FRAME 
LATCH ROLLER 
(2 LOCATIONS)
LATCH ROLLER 
1
FLUSH 
LATCH ROLLER 
MIL-G-23827 
2 POINTS 
(2 LOCATIONS) 
B 
1 ONE MORE LUBE POINT IS ON THE OPPOSITE SIDE (NOT SHOWN) 
No. 3 Cargo Door Lubrication 
Figure 301
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2.
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3. 
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757 MAINTENANCE MANUAL
 EQUIPMENT COMPARTMENT AND EXTERIOR SERVICE DOORS - SERVICING
____________________________________________________________
General
_______
 A.  This procedure contains three tasks. The first task gives instructions to lubricate the air conditioning access door. The second task gives instructions to lubricate the forward access door. The third task gives instructions to lubricate the electrical/electronics access door.
 TASK 12-21-27-643-001
Lubricate the Air Conditioning Access Door (Fig. 301)
__________________________________________
 A.  Consumable Materials
(1) 
D00633 Grease - BMS 3-33 (Recommended)
(2) 
D00013 Grease, MIL-G-23827 (Alternative)
 B.  Access
 (1)  
Location Zone
 100 Lower Half of Fuselage
 (2)  
Access Panels
 193HL/194ER Air Conditioning Access Door
 C.  Procedure - Lubricate the Air Conditioning Access Door
 S 643-002
 CAUTION: BE CAREFUL WHEN YOU DISENGAGE THE GREASE GUN FROM THE
_______ LUBRICATION FITTING. DAMAGE TO THE LUBRICATION FITTING CAN EASILY OCCUR.
 (1) Lubricate the air conditioning access door as shown (Fig. 301).
 TASK 12-21-27-643-003
Lubricate the Forward Access Door (Fig. 302)
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