CHANGE:
REASON:
PARTS AFFECTED:
INTERCHANGEABILITY:
SERVICE INFORMATION:
Begining at the start of production for 1999 models, Ford Motor Company made available a "Power
Take Off" option for some F250, F350, F450 and F550 Super Duty Trucks, equipped with 5.4L,
6.8L and 7.3L engines.
The "PTO" option addition, to the 4R100, required many changes to the transmission to make the
"PTO" function. The "PTO" window, added to the case, the "PTO" drive gear and other cosmetic
changes were covered on Page 6 in this manual. Hydraulic changes also had to be made to make
the coast clutch operate in ranges other than the Drive ranges (See Figure 35).
TRANSMISSION CASE:
The transmission case was changed to accommodate the "PTO"
window, as shown in this manual.
All
4R100 Cases, "NON-PTO"and "PTO,"also had a "Dam"
added to seperate "Rear Lube" and to incorporate "Central Lube"as shown in Figure 25.
VALVE BODY TO CASE SPACER PLATE:
The Valve Body to Case Spacer plate on the "PTO"
versions had a hole added to supply the 3-4 Shift Valve with Line Pressure, as shown in Figure 27. A
hole was also added to the Spacer Plate on "NON-PTO" and "PTO" versions to connect "Solenoid
Regulator Valve" oil to supply "Central Lubrication." Refer to Figures 26 and 27 for identification
of "NON-PTO"and "PTO" Valve Body To Case Spacer Plates.
MAIN VALVE BODY:
A passage was added on the "Upper Side" of the Main Valve Body on
"PTO" versions, as shown in Figure 29, to supply Line Pressure to the 3-4 Shift Valve. A passage
was also added, on the "Lower Side" of the Main Valve Body, to connect the 3-4 Shift Valve (Coast
Clutch Circuit) to an exhaust as shown in Figure 31. The spring side of the 3-4 Shift Valve was also
seperated from the Low/Reverse circuit as shown in Figure 31. Refer to Figures 28 thru 31 for
identification of "NON-PTO" and "PTO" Main Valvebody's.
LOWER VALVE BODY:
The Lower Valve Body has a passage added, as shown in Figure 33, to
connect to the
"new"
exhaust passage in the Main Valve Body. Refer to Figures 32 and 33, for
identification of "NON-PTO" and "PTO" Lower Valvebody's.
LOWER VALVE BODY SPACER PLATE:
The Lower Valve Body Spacer Plate had a hole added
to connect the
"new"
exhaust passage in the Main Valve Body to the
"new"
exhaust passage in the
Lower Valve body a shown in Figure 34. Refer to Figure 34 for "NON-PTO" and "PTO" Lower
Valve Body Spacer Plate identification.
None
of the parts listed above will interchange between "NON-PTO" and "PTO" versions.
(1)
(2)
(3)
(4)
(5)
Valve Body To Case Spacer Plate (Non-PTO) .................. ................................F81Z-7A008-DA
Valve Body To Case Spacer Plate (PTO) ...........................................................F81Z-7A008-BA
FORD 4R100
"NON-PTO" AND "PTO"
HYDRAULIC DIFFERENCES
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
22
Copyright © 2003 ATSG
Summary of Contents for FORD 4R100
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