2015 FORD F750 Allison

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
16 15A High beams, Indicator
17 — Not used
18 5A Dimmer switch, Interior lighting
19 15A Engine control (diesel engine only)
20 5A Starting system
21 10A DRL resistor
22 15A Air horn, Air suspension dump, Two-speed
axle, Driver-controlled locking differential
23 10A Flasher relay
24 15A Hydraulic brakes relay, Fuel heater relay
(diesel engine only), Air dryer
25 10A Blower motor relay coil
26 10A Right-hand low beam headlight
27 — Not used
28 10A Left-hand low beam headlight
29 10A Cluster, GEM
30 15A Allison electronic transmission
31 15A Mirror fold relay
Relay 1 — Interior lamps
Relay 2 — Not used
Relay 3 — Horn
Relay 4 — Not used
Relay 5 — Not used
Fuses193
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
4 30A* Trailer tow turn/stop lamps (combined)
Trailer tow turn lamps (separate)
5 — Not used
R1 — Trailer tow ABS relay (non electric trailer
brake vehicles only)
R2 — Trailer tow marker lamp relay
R3 — Trailer tow stop lamp relay
R4 — Trailer tow tail lamp relay
R5 — Not used
R6 — Not used
R7 — Trailer tow left turn lamp relay
R8 — Trailer tow right turn lamp relay
*Maxi fuse
Inline Fuses
Your vehicle may have several inline fuses located in, or on, the battery
cables located in the battery box (depending on application).
•All vehicles equipped with an Allison transmission have a 10 amp fuse
located in the clean power cables located in the battery box.
•All vehicles have a 30 amp fuse located in the clean power cables
located in the battery box.
•All vehicles equipped with hydraulic brakes have a 40 amp fuse
located in the clean power cables located in the battery box. In
addition, another 30 amp fuse is located in a fuse holder just above
the power distribution center located in the vehicle’s engine
compartment.
196Fuses
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

When Fail-Safe Mode Turns On
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
Note:Driving your vehicle without repairing the engine problem
increases the chance of engine damage. Take your vehicle to an
authorized dealer as soon as possible.
You have limited engine power when in the fail-safe mode, so drive your
vehicle with caution. Your vehicle is not able to maintain high-speed
operation and the engine runs rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage; therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Have your vehicle taken to an authorized dealer.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
5. Restart the engine and take your vehicle to an authorized dealer.
TRANSMISSION FLUID CHECK
Allison Automatic Transmissions
See yourAllison Automatic Transmission Operator’s Manualfor
scheduled transmission fluid checks and change intervals. Your
transmission does not consume fluid. However, you should check the
fluid level if the transmission is not working properly. For example, if the
transmission slips or shifts slowly or if you notice some sign of fluid
leakage.
Automatic transmission fluid expands when warmed. To obtain an
accurate fluid check, drive your vehicle until it is at normal operating
temperature, approximately 20 miles (30 kilometers). Verify that the
transmission fluid temperature gauge, located on the instrument cluster,
is within the normal range.
1. Drive your vehicle 20 miles (30 kilometers) or until it reaches normal
operating temperature.
2. Park your vehicle on a level surface and engage the parking brake.
3. With the engine running, parking brake engaged and your foot on the
brake pedal, move the gearshift lever through all of the gear ranges.
Allow sufficient time for each gear to engage.
4. Latch the gearshift lever in positionNorPand leave the engine
running.
5. Remove the dipstick, wiping it clean with a clean, dry, lint-free rag.
Maintenance215
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

6. Install the dipstick making sure to seat it fully in the filler tube.
7. Remove the dipstick and inspect the fluid level. The fluid should be
in the designated area for normal operating temperature or ambient
temperature.
If you must add transmission fluid, see yourAllison Automatic
Transmission Operator’s Manualfor the correct fluid type.Use of a
non-approved automatic transmission fluid may cause internal
transmission component damage.
Fluid levels above the safe range may result in transmission failure. An
overfill condition of transmission fluid may cause shift or engagement
concerns or possible damage.
TorqShift® Automatic Transmission
See theScheduled Maintenancechapter for scheduled intervals for
fluid checks and changes. Your transmission does not consume fluid.
However, you should check the fluid level if the transmission is not
working properly. For example, if the transmission slips or shifts slowly
or if you notice some sign of fluid leakage.
Automatic transmission fluid expands when warmed. To obtain an
accurate fluid check, drive your vehicle until it is at normal operating
temperature, approximately 20 miles (30 kilometers). Verify that the
transmission fluid temperature gauge, located on the instrument cluster,
is within the normal range.
1. Drive your vehicle 20 miles (30 kilometers) or until it reaches normal
operating temperature.
2. Park your vehicle on a level surface and engage the parking brake.
3. With the engine running, parking brake engaged and your foot on the
brake pedal, move the gearshift lever through all of the gear ranges.
Allow sufficient time for each gear to engage.
4. Latch the gearshift lever in positionPand leave the engine running.
5. Remove the dipstick, wiping it clean with a clean, dry, lint-free rag.
6. Install the dipstick making sure to seat it fully in the filler tube.
7. Remove the dipstick and inspect the fluid level. The fluid should be
in the designated area for normal operating temperature or ambient
temperature.
216Maintenance
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

Component SpecificationViscosity / Ambient
Temperature / NotesEquivalent Ford
Part Name / Number
Meritor Petroleum oil: Heavy
Duty Engine Oil
MIL-L-2104E or API-SL
or API-CF (previous
API designations
acceptable)SAE 30W:
Below 10°F (–12°C)Motorcraft SAE 30
Super Duty Motor Oil /
XO-30-QSD
SAE 40W or SAE 50W:
Above 10°F (–12°C)—
Mineral gear oil with
rust and oxidation
inhibitor API-GL-1.Do
not use multi-weight
and GL-5 EP gear
oils; they may cause
transmission failure
or damage.SAE 80W:
Below 10°F (–12°C)—
SAE 90W:
Above 10°F (–12°C)—
Synthetic oil:
MIL-L-2104E or
MIL-L-46152D.Do not
use multi-weight and
GL-5 EP gear oils;
they may cause
transmission failure
or damage.SAE 50W:
All temperatures—
Allison See transmission operator’s manual
262Capacities and Specifications
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

REFILL CAPACITIES
Engine Oil and Engine Coolant
Engine oil
Item Capacity Ford part
name or
equivalentFord part
number/Ford
specification
Diesel engine See engine operator’s manual
6.8L V10 engine 7.0 quarts
(6.6L)Motorcraft SAE
5W-20 Motor Oil
or equivalent
1,2,3
WSS-M2C945-A
1Your engine has been designed to use engine oil that meets Ford
specification. It is also acceptable to use an engine oil of recommended
viscosity grade that displays the API Certification Mark for gasoline
engines.
2Do not use API S category oils labeled as SN, SM, SL or previous oil
category unless the label also display the API certification mark. These
oil do not meet all the requirements of your vehicles engine and
emissions system.
3Do not use supplemental engine oil additives, cleaners or other engine
treatments. They are unnecessary and could lead to engine damage that
is not covered by Ford warranty.
Engine Engine coolant*
Diesel 26.0 quarts (24.6L)**
Gasoline 26.3 quarts (24.9L)**
*
Quantities listed are approximate.
**Add the coolant type originally equipped in your vehicle.
Transmission
Note:Capacities may be higher if the vehicle is equipped with a cooler.
Always check to make sure the fluid level is in the acceptable range.
Description Capacity - Pints (Liters)
Allison 2000 Series 30.0 (14.2)*
Allison 3000 Series 37.6 (17.8)*
TorqShift six–speed 31.0 (14.9)
5–speed manual 12.5 (5.9)
268Capacities and Specifications
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)