2015 FORD F750 differential

Climate Control System
Have the air conditioning system checked each spring. The refrigerant
charge, cleanliness of the condenser-evaporator cores and belt condition
are essential to system performance.
When the air conditioning system is being used daily, remove the fresh
air filter (if equipped) once each season and check for things such as
dirt and lint. Replace the filter if necessary. Vehicles operating in
unusually dusty conditions may require more frequent filter inspection
and replacement.
Front Axle
Maintaining the front axle alignment to specifications is very important.
A qualified technician should check and maintain the alignment. Regular
inspections should include:
•Toe-in inspection and adjustment (if necessary), particularly with
radial tires.
•Checking for proper tightness of axle mounting U-bolt nuts, attaching
or mounting bolts and nuts.
•Checking the axle for damage, binding, worn parts and adequate
lubrication..
•Checking the kingpins for excessive wear. Also, perform this check
during other scheduled maintenance (such as tire rotation or service,
wheel bearing service and alignment). See the workshop manual for
proper procedures.
Toe-in
It is essential to maintain correct toe-in and tire pressure for optimum
tire wear.
Inspecting steer axle tires in the first 3000–10000 service miles
(5000–16000 service kilometers) generally shows if tires are wearing
normally.
Rapid outside shoulder wear on both tires indicates too much toe-in.
Rapid inside shoulder wear on both tires indicates too much toe-out.
In P&D-type service, there can be a left-to-right steer tire tread life
differential up to 40% depending on routes and other variables.
Follow the tire manufacturer’s recommended cold inflation pressure for
the tire size, load range (ply rating) and steer axle loading typical for
their operation (each steer axle tire equals
12steer axle loading).
Maintenance199
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

Special applications may warrant a setting based on experience with the
type of tire operating loads and conditions. Radial tires are more
sensitive to toe-in setting than bias ply tires. Fine tuning school bus
alignment to line-haul truck standards does not drastically improve tire
tread life.
Rear Axle
Regular inspections should include:
•Checking for proper tightness of axle mounting U-bolt nuts, attaching
or mounting bolts and nuts. SeeSpring U-bolt checkslater in this
chapter.
•Checking the axle for damage, binding, worn parts and adequate
lubrication.
NoSpin Detroit Locker Positive Locking Differential
Vehicles equipped with this type differential have the operator’s manual
supplied with the vehicle. See that manual for maintenance inspections.
Brake System
Note:People handling brake linings should follow all precautions listed
below:
200Maintenance
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

Description Capacity - Pints (Liters)
6–speed manual 19.5 (9.2)
7–speed manual 22.0 (10.4)
*Total fluid capacity (dry transmission and torque converter).
Rear Axle
Eaton-Spicer
Axle CodeWeight Capacity - lb
(kg)DescriptionCapacity -
Pints
(Liters)
*
S135–S 13500 (6123) Single reduction 24.5 (11.6)
4S150–S 15500 (7031) Single reduction 24.5 (11.6)
17060S 17500 (7938) Single reduction 28.0 (13.2)
19055T 17500 (7938) Two-speed 28.0 (13.2)
19060S 19000 (8618) Single reduction 28.0 (13.2)
M190T 19000 (8618) Two-speed 35.0 (17.0)
21060S 21000 (9525) Single reduction 28.0 (13.2)
21060D 21000 (9525) Single reduction,
driver-controlled
locking differential28.0 (13.2)
M210T 21000 (9525) Two-speed 16.0 (33.0)
23090S 23000 (10432) Single reduction 39.0 (18.5)
23090D 23000 (10432) Single reduction,
driver-controlled
locking differential39.0 (18.5)
23082T 23000 (10432) Two-speed 37.0 (17.5)
*Quantities listed are approximate. Fill the axle until the lubricant level is
at the bottom of the filler hole, with the vehicle on level ground.
When removing the hubs, add an additional 1.6 pints (0.75 liters) of axle
lubricant. Add lubricant through the axle vent.
Capacities and Specifications269
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)