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DA435HA: 99901219: 2-1
2-1. GENERAL
This section pertains to the installation of the IMT
DA435HA compressor, PTO and pump. The
instructions are intended as a guide to assist you
with your particular installation. These instructions
will provide only general information.
2-2. PTO AND PUMP INSTALLATION
The pump may either be installed directly on the
PTO (see Figure B-1) or, as an optional method, it
may be driven by a driveline (see Figure B-2).
2-2-1. PTO INSTALLATION
Power take-off manufacturers provide specific
installation instructions for their products. Those
instructions should be followed when installing a
PTO. 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
properly.
19980930
SECTION 2. INSTALLATION
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
.006" to .012". 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
TRANSMISSION FLUID.
Registered Trademark of Permatex Co., Inc., Kansas City, Kansas
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 check for
proper PTO rotation. Allow it to run for 5 - 10
minutes. Check for leaks, unusual noise and proper
operation.
8. Retorque the mounting bolts.
FIGURE B-1. PTO INSTALLATION