IOWA MOLD TOOLING Diamond Air 80 PTO, Manual

DA440PBU: 99900403:

2-1

19990119

SECTION 2. INSTALLATION

2-1.  GENERAL

This section deals with the installation of the PTO.
The instructions are intended as a guide to assist you
with your particular installation.  We can not cover
every make, model and year of truck manufactured
world-wide, so these instructions will provide only
general information.  Use this information as a guide
only.

2-2.  PTO INSTALLATION

Power take-off manufacturers provide specific
installation instructions for their products.  Those
instructions should be followed when installing a
PTO.  Some trucks may require modification of the
transmission cross-member to provide clearance and
the exhaust pipe may need modification.  Check with
the PTO manufacturer’s representative for specific
instructions regarding your particular make, model
and year of vehicle.  The following instructions are a
guide in this application.

1.

If the vehicle is new, drain the transmission oil

into a clean container for reuse.  If the vehicle is
used, drain and dispose of the transmission oil.

2.

Temporarily install the PTO with the proper

gaskets and only two studs.  Snug the PTO down and
check the backlash for maximum allowance of 1/32"
to 1/16".  If the backlash is excessive, remove
gaskets and check backlash again until it is
corrected.

3.

Remove the PTO and apply Permatex to the

gaskets.  If the holes for the studs are tapped through
the transmission housing, apply Permatex to the
studs and tighten them down.  Make certain that the
studs do not interfere with the transmission gears.

CAUTION

AVOID CONTACT OF PERMATEX WITH AUTOMATIC
TRANSMISSION FLUID.

4.

Install the PTO and gaskets.  Torque the nuts to

30 - 35 ft-lbs (4.14 - 4.84 kg-m) for a 6-bolt PTO
and 45 - 50 ft-lbs (6.22 - 6.91 kg-m) for 8-bolt
PTO’s.  Recheck the backlash.

5.

Install the shifter cable to suit conditions.

Always allow for a slight overshift on lever or knob
to ensure the PTO is fully disengaged.

CAUTION

IT IS IMPORTANT THAT ADEQUATE SPACE BE
ALLOWED FOR FULL ENGAGEMENT OF THE PTO.
MODIFY THE EXHAUST OR OTHER OBSTRUCTIONS
AS NEEDED.

CAUTION

AVOID SHARP BENDS IN THE SHIFTER CABLE.  ALL
BENDS SHOULD HAVE AT LEAST A 6" RADIUS.
TIGHTER BENDS WILL CAUSE DIFFICULT OPERATION
OF THE SHIFTER KNOB.

6.

Replace the transmission oil.  If the PTO is

located below the transmission oil level, an
additional quantity of oil will be required.

7.

Start the engine, engage the PTO and allow it to

run for 5 - 10 minutes.  Check for leaks, unusual
noise and proper operation.

8.

Retorque the mounting bolts.

WARNING

THE INSTALLER OF THE DRIVELINE MUST INSPECT
THE FINAL POSITION OF THE DRIVELINE TO
DETERMINE WHETHER ITS LOCATION PROVIDES
SUFFICIENT PROTECTION TO AN OPERATOR, OR
OTHER PERSONNEL, FROM HAZARDS ASSOCIATED
WITH A ROTATING DRIVELINE.  IF PROTECTION IS
INSUFFICIENT, THE INSTALLATION OF A GUARD IS
REQUIRED.  IF YOU ARE UNSURE OF METHODS TO
GUARD A ROTATING DRIVELINE, CALL IOWA MOLD
TOOLING CO., INC. FOR INSTRUCTIONS.  FAILURE
TO DO SO MAY RESULT IN SERIOUS INJURY OR
DEATH.