Piper PA-44-180 SEMINOLE Maintenance Manual page 28

Nature of Inspection
B. ENGINE GROUP (CONT)
43. Overhaul or replace vacuum pumps (See Note 7).................
CAUTION: THE ONLY DRY AIR PUMP MOUNTING
GASKET
APPROVED FOR USE ON THE AIR-
BORNE DRY AIR PUMP IS THE B3-1-2
AIRBORNE GASKET, PIPER
NUMBER 751 859. USE OF ANY OTHER
GASKET MAY RESULT IN LEAKAGE AT
THE MOUNTING SURFACE.
4 4 . Inspect throttle, carburetor heat, mixture and propeller
g o v ernor controls for security, travel and operating
c o n d ition................................................................................
45. Inspect exhaust stacks, connections and gaskets (Replace as
required and refer to latest Piper Service Letter No. 860)......
46. Check operation of alternate air door.....................................
47. Inspect muffler heat exchanger and baffles............................
48. Inspect breather tubes for obstructions and security ..............
49. Inspect crankcase for cracks, leaks and security of seam
bolts ........................................................................................
50. Inspect engine mounts for cracks and loose mountings (See
Note 23)..................................................................................
51. Inspect engine baffles for cracks and loose mountings..........
52. Inspect rubber engine mount bushings for deterioration
(Replace as required)..............................................................
53. Inspect firewall seals ..............................................................
54. Inspect condition and tension of alternator drive belt ............
55. Inspect condition of mounting of alternator and starter.........
56. Inspect all lines, air ducts, electrical leads and engine
attachments for security, proper routing, chafing, cracks,
deterioration and correct installation .....................................
57. Lubricate all controls per lubrication chart in Chapter 12.....
58. Overhaul or replace propeller governor (Refer to latest
Hartzell Service Letter No. 61...............................................
59. Complete overhaul of engine or replace with factory rebuilt
(See Note 7)...........................................................................
60. Install engine cowl.................................................................
PIPER AIRCRAFT
PA-44-180/180T
AIRPLANE MAINTENANCE MANUAL
PERIODIC INSPECTIONS (cont.)
—Note—
Refer top Notes 1, 2, 3, and 4 performing inspections.
AUTHORIZED
L
O
AND
PA RT
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
1B4
Inspection time (hrs)
R 50 100 500
O
O O O
O O O
O O O
O O O
O O O
O O O
O O O
O O O
O O O
O O O
O O O
O O O
O O O O
O O O O
O
O
O O O O
Revised: June 20, 1995
1000
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
5-21-00
Page 5-05