Ford F-53 Motorhome Chassis (2017 year). Manual — part 24

High fluid level

E161553

Fluid levels above the safe range may
result in transmission failure. An overfill
condition of transmission fluid may cause
shift and/or engagement concerns and/or
possible damage. High fluid levels can be
caused by an overheating condition.

Adjusting automatic transmission
fluid levels

Note: Use of a non-approved automatic
transmission fluid may cause internal
transmission damage. Before adding any
fluid, make sure the correct type is used. The
type of fluid used is normally indicated on
the transmission dipstick and also in the
See Capacities and Specifications (page
125).

E161554

Add fluid in ½ pint (250 ml) increments
through the filler tube until the level is
correct.

Note: If an overfill occurs, excess fluid
should be removed by an authorized dealer.
An overfill condition of transmission fluid
may cause shift and/or engagement
concerns and/or possible damage.

Do not use supplemental transmission
fluid additives, treatments or cleaning
agents. The use of these materials may
affect transmission operation and result
in damage to internal transmission
components.

Automatic transmission fluid filter

The TorqShift6™ automatic transmission
is equipped with a serviceable transmission
fluid filter located inside the transmission
bottom pan. Refer to the scheduled
maintenance information for service
intervals for the automatic transmission
fluid and transmission filter. For
transmission filter maintenance, see your
authorized dealer.

BRAKE FLUID CHECK

Fluid levels between the MIN and MAX
lines are within the normal operating range;
there is no need to add fluid. If the fluid
levels are outside of the normal operating
range, the performance of the system
could be compromised; seek service from
your authorized dealer immediately.

Hydromax

WARNINGS

Carefully read cautionary information
on product label. For MEDICAL
EMERGENCY INFORMATION contact

a physician or Poison Control Center
immediately; on Ford-Motorcraft™
products call: 1-800-959-3673 (FORD).
Failure to follow these instructions may
result in personal injury.

Use of any brake fluid other than that
indicated for your brake system will
cause permanent damage.

Do not let the reservoir for the master
cylinder run dry. This may cause the
brakes to fail and result in personal

injury.

Chassis with gross vehicle weight ratings
of 20500 pounds (9299 kilograms),
22000 pounds (9979 kilograms), 24000
pounds (10886 kilograms) and 26000
pounds (11793 kilograms) are equipped
with Hydromax Brake Booster Systems
and must use Motorcraft DOT 5.1 Motor
Vehicle Brake Fluid or equivalent meeting
Ford Specification ESD-M6C57-A. See
Capacities and Specifications (page
129).

Add fluid up to the bottom of the rings
located at the top of the reservoir. Do not
fill above this line.

E161555

•

Use only DOT 5.1 brake fluid that is
certified to meet Ford specifications.

•

A clear gel-like substance in the
hydraulic brake master cylinder
reservoir may appear on some vehicles.
This substance is a silicone base
lubricant used during assembly of the
master cylinder. It will float on top of
the brake hydraulic fluid in the master
cylinder. This condition is normal and
in no way affects the operation of the
brake system. It does not require any
service.

•

Brake system fluid should be replaced
on a regular basis to maintain optimum
braking performance, especially under
heavy-duty driving conditions such as
frequent steep grades or heavy towing
loads. See Scheduled Maintenance
(page 136).

Hydroboost

Chassis with gross vehicle weight ratings
of 16000 pounds (7257 kilograms), 18000
pounds (8165 kilograms) and 19500
pounds (8845 kilograms) are equipped
with Hydroboost Brake Booster Systems
and must use Motorcraft High
Performance DOT 3 Motor Vehicle Brake
Fluid or equivalent meeting Ford
Specification WSS-M6C62-A.

Add brake fluid from a clean unopened
container until the level reaches MAX. Do
not fill above this line. Use only DOT 3
brake fluid that is certified to meet Ford
specifications.

Brake system fluid should be replaced on
a regular basis to maintain optimum
braking performance, especially under
heavy-duty driving conditions such as
frequent steep grades or heavy towing
loads. See Scheduled Maintenance
(page 136).

POWER STEERING FLUID
CHECK

E161557

Note: The power steering cap has both a
cold and hot indicator on the dipstick.

1.

Start the engine and let it run until it
reaches normal operating temperature
(the engine coolant temperature gauge
indicator will be near the center of the
normal area between H and C).

2. While the engine idles, turn the steering

wheel left and right several times.

3. Turn the engine off.
4. Check the fluid level on the dipstick. It

should be between the arrows in the
FULL range on the side of the dipstick
with the words MAX. HOT at the top.
Do not add fluid if the level is within
this range.

5. If the fluid is low, add fluid in small

amounts, continuously checking the
level until it reaches the FULL range.
Be sure to put the dipstick back in the
reservoir.

Steering linkage lubrication points

There are nine lubrication points on the
steering linkage: See Capacities and
Specifications (page 129).

E161558

•

1 and 9 -Top of the king pin.

•

2 and 7 - Bottom of king pin.

•

3 and 8 - Right hand and Left hand tie
rod end.

•

4 - Steering gear.

•

5 and 6 - Drag link.

FUEL FILTER

Your vehicle is equipped with a lifetime
fuel filter that is integrated with the fuel
tank. Regular maintenance or replacement
is not needed.

CHANGING THE 12V BATTERY

WARNINGS

Batteries normally produce explosive
gases which can cause personal
injury. Therefore, do not allow

flames, sparks or lighted substances to
come near the battery. When working near
the battery, always shield your face and
protect your eyes. Always provide proper
ventilation.

WARNINGS

When lifting a plastic-cased battery,
excessive pressure on the end walls
could cause acid to flow through the

vent caps, resulting in personal injury and
damage to the vehicle or battery. Lift the
battery with a battery carrier or with your
hands on opposite corners.

Keep batteries out of reach of
children. Batteries contain sulfuric
acid. Avoid contact with skin, eyes or

clothing. Shield your eyes when working
near the battery to protect against possible
splashing of acid solution. In case of acid
contact with skin or eyes, flush
immediately with water for a minimum of
15 minutes and get prompt medical
attention. If acid is swallowed, call a
physician immediately.

Note: If your battery has a cover/shield,
make sure it is reinstalled after the battery
has been cleaned or replaced.

Note: Battery posts, terminals and related
accessories contain lead and lead
compounds. Wash hands after handling.