99903514:TELESCOPIC CRANE: 4-2
SECTION 4: INSTALLATION
4-1: GENERAL
Use the information in this section to prepare
the truck chassis for installation of an IMT
frame-mounted hydraulic crane. It contains
information regarding PTO and pump installa-
tion, and frame reinforcement.
These instructions are intended only as a
guide. IMT cannot cover every make, model
and year of truck manufactured worldwide, so
these instructions will provide only general
information and should be used as a guide
only.
For more specific information, the following
IMT manuals provide detailed information on
subjects which pertain to this section. Also,
see your specific crane manual for information
specific to your model of crane.
MINIMUM CHASSIS SPECIFICATIONS
For mounting of IMT Truck mounted cranes
Domestic Version - 99900765
Metric Version - 99900764
Instructions and calculations for determining
suitable truck frame strength. Also minimum
chassis specifications for most IMT cranes.
HYDRAULIC PUMP SELECTION GUIDE
99900698
An aid in the selection of hydraulic pumps for
use with cranes and compressors.
4-2: CHASSIS PREPARATION
Prior to installing the crane, follow these
steps:
1. Inspect the carrier vehicle to be certain it
complies with the minimum chassis specifica-
tions for your crane model.
2. Clear obstructions from the portion of the
chassis frame where the crane body will rest.
Check that you have adequate mounting
space. Space will be available for gas tanks,
etc. after the crane is installed.
3. Install the PTO according to the PTO
manufacturer’s instructions (paragraph 4-3-1).
4. Install the pump (paragraph 4-3-2 or 4-3-
3). Make sure that the pump rotates in the
proper direction and tighten the pump mount-
ing bolts.
5. Install the suction-line filter below the top of
the truck frame and within 48" (121.9cm) of
the pump. Locate it so the vacuum gauge can
be read and the filter easily serviced.
6. Spray paint all unpainted surfaces.
4-2-1: FRAME STRENGTH
To prevent overstressing the truck frame by
loads imposed on it by a crane (and its load),
you must select the proper truck frame. You
may also have to reinforce the frame. Check
the model-specific information at the end of
this section for the RBM (Resistance to
Bending Moment) required of a frame for your
crane model.
4-3: PTO AND PUMP
4-3-1: PTO INSTALLATION
A Power Take Off (PTO) must be properly
matched to the vehicle’s transmission as well
as the requirements of the crane. In order to
properly select a PTO the following informa-
tion will be needed.
1. Make and model of transmission in the
carrier vehicle.
2. Power requirements of the crane being
driven.
3. Necessary PTO speed.
4. Direction in which the PTO must turn.
5. PTO torque required.
If possible, use a hydraulic pump directly
mounted to the PTO. This will eliminate an
auxiliary driveshaft and is easier to install by
eliminating driveline angle and phasing errors.
It is also quieter and should require less
maintenance since driveline lubrication will not
be necessary.
20030115
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