7 POINTS
F
Forward Airstair Lubrication Figure 301 (Sheet 4)
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A 737-300/400/500MAINTENANCE MANUAL 
BEARING BLOCK OUTBOARD  BEARING BLOCK OUTBOARD 

(1 LOCATION) (1 LOCATION)

GEARBOX
CARRIAGE (BOTTOM)

Forward Airstair Lubrication
Figure 301 (Sheet 5)

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A 737-300/400/500MAINTENANCE MANUAL
GEAR TEETH
1
MIL-G-23827 (2 LOCATIONS) GEAR BEARING FLUSH
1
MIL-G-23827 GEAR BEARING
(2 LOCATIONS)
FLUSH
1
MIL-G-23827
GEAR TEETH (1 LOCATION)
UPPER LADDER PIVOT GEARS
1
(AFT GEARS ARE SHOWN, FORWARD GEARS ARE EQUIVALENT MIL-G-23827 (1 LOCATION)
4 POINTS
H1
UPPER LADDER PIVOT GEAR (AFT GEAR IS SHOWN,
SHAFT
FORWARD GEAR IS EQUIVALENT)
FLUSH
1
2 POINTS
MIL-G-23827 
(1 LOCATION)  H  2 
GEAR 
1 
MIL-G-23827 
(1 LOCATION) 

LOWER LADDER PIVOT GEAR (AFT GEAR IS SHOWN, FORWARD GEAR IS EQUIVALENT)
2 POINTS
I
Forward Airstair Lubrication
Figure 301 (Sheet 6)

K07026
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A 737-300/400/500MAINTENANCE MANUAL
MECHANISM BEARING FLUSH
1
MIL-G-23827
TOP LADDER MECHANISM
(4 LOCATIONS)
TOP LADDER MECHANISM (AFT MECHANISM IS SHOWN, FORWARD MECHANISM IS EQUIVALENT) 4 POINTS J1
CAM PLATE
CAM PLATE BEARING FLUSH
1
MIL-G-23827
(2 LOCATIONS)
(LUBRICATION FITTINGS ARE ON OPPOSITE SIDE)

UPPER LADDER MECHANISM (AFT MECHANISM IS SHOWN, FORWARD MECHANISM IS EQUIVALENT) 2 POINTS J2
Forward Airstair Lubrication
Figure 301 (Sheet 7)

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K07282
A

737-300/400/500
MAINTENANCE MANUAL

BOTTOM LADDER MECHANISM
(FORWARD MECHANISM IS SHOWN, AFT MECHANISM IS EQUIVALENT)

2 POINTS

1
Forward Airstairs Lubrication
Figure 301 (Sheet 8)

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K07292
A
737-300/400/500MAINTENANCE MANUAL
SLIDING WINDOW LUBRICATION - SERVICING
UPPER BELLCRANK AND GLIDE
UPPER TRACK MIL-L-7870
INSIDE SURFACE (ENTIRE LENGTH) (2 LOCATIONS)
MIL-L-7870 OR
BMS 3-8 SEEA C
(1 LOCATION)
LATCH MECHANISM ROD
LOWER BELLCRANK ROD END, GUIDE MIL-L-7870
ROLLER, AND SHAFT (1 LOCATION)
MIL-L-7870
SEE B (3 LOCATIONS)
LEFT WINDOW
1
(RIGHT WINDOW IS OPPOSITE) 7 POINTS
TRIGGER HINGE PIN
HANDLE PIVOT AREA
MIL-L-7870 (1 LOCATION) 1 MIL-L-7870 (2 LOCATIONS) GUIDE PIN TRACK
　
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