NACD 11.5 Manuel utilisateur
NACD Power Take-Off Service Manual
1016070AM
11.5" TP Power Take Off
Includes Installation, Operation, Maintenance and Overhaul Instructions
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
NOTICE
IMPORTANT INFORMATION
It is imperative that proper installation, maintenance, operation and safety procedures be followed explic-
itly regarding products manufactured by North American Clutch & Driveline.
GENERAL:
Safe working and operating practices must be employed by all personnel working on, with, or near NACD
products. NACD will not be responsible for personal injury.
SAFETY NOTICE:
Accidents may result from use of manufactured products, resulting in possible danger to
person(s) or property. Therefore, it is important and imperative that correct, safe procedures
be followed. Products must be installed, maintained, operated and used in accordance with
the engineering information specied. Continual and repeated inspections and observations
should be employed as necessary to assure that safe operations and a safe environment exist
under prevailing conditions. Use proper guards and other suitable safety equipment, devices
and procedures that may be desirable or specied in safety codes, or as necessary to prevent
accidental injury to person(s) or property. These devices are neither provided by NACD nor are
they the responsibility of NACD.
OWNER / OPERATOR / USER RESPONSIBILITIES:
Knowledge of and performance of the procedures specied in this publication are the responsibility of the
owner(s), operator(s), user(s) and all person(s) working on or near the products described herein. Follow-
ing these procedures and explicit adherence to the information described should ensure safe and reliable
use, repair, and operation of products provided by NACD.
WARRANTY:
NACD’s limited Warranty is described in detail in this publication. It is the responsibility of the original pur-
chaser or manufacturer, successive buyers, users, third parties or employees to make themselves aware
of this warranty and all conditions it contains.
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com 1
INTRODUCTION
General Information
Replacement Parts
Parts Shipment
Preventative Maintenance/Troubleshooting
Safety
Sources of Service Information
Warranty
DESCRIPTION & SPECIFICATIONS
General
INSTALLATION
Preliminary Checks
Drive Ring Installation
Pilot Bearing Installation
Power Take-Off Installation to Engine Driving Member
Installation Tips
Torque Values for Fasteners
Allowable Side Loads
PREVENTATIVE MAINTENANCE
Lubrication
Clutch Adjustment
DISASSEMBLY
ASSEMBLY
2
2
2
3
3
4
4
5
5
5
6
6
8
8
9
10
12
14
15
15
16
16
19
TABLE OF CONTENTS
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
2
INTRODUCTION
General Information
This publication provides the information necessary for the operation and maintenance
of the NACD Power Take Off specied on the cover of this manual. Specic engineering
details and performance characteristics can be obtained from the Engineering
Department of NACD, Rockford, Illinois, USA.
Operation and maintenance personnel responsible for this equipment should have this
manual at their disposal and be familiar with its contents. Applying the information in the
manual will result in consistent performance from the unit and help reduce downtime.
Replacement Parts
Parts Lists
Engineering assembly drawings and bill of materials are provided in appropriate sections
of this manual to facilitate ordering spare or replacement parts.
Ordering Parts
All replacement parts or products (including hoses and ttings) must be of NACD
origin or equal, and otherwise identical with components of the original equip-
ment. Use of any other parts or products will void the warranty and may result in
malfunction or accident, causing injury to personnel and/or serious damage to the
equipment.
Renewal parts and service parts kits may be obtained from any authorized NACD
distributor or service dealer.
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com 3
Parts Shipment
Furnish the complete shipping information and postal address. All parts shipments made
from the factory will be FOB factory location, USA. State specically whether the parts
are to be shipped by freight, express, etc. If shipping instructions are not specied, the
equipment will be shipped the best way, considering time and expense. NACD will not
be responsible for any charges incurred by this procedure.
NACD, having stipulated the bill of material number on the unit’s nameplate, absolves
itself of any responsibility resulting from any external, internal or installation changes
made in the eld without the express written approval of NACD. All returned parts, new
or old, emanating from any of the above-stated changes will not be accepted for credit.
Furthermore, any equipment which has been subjected to such changes will not be cov-
ered by a NACD warranty.
Preventative Maintenance/Troubleshooting
Frequent reference to the information provided in this manual regarding daily operation
and limitations of this equipment will assist in obtaining trouble-free operation. Sched-
ules are provided for the recommended maintenance of the equipment and, if observed,
minimal repairs (aside from normal wear) will result.
Lifting Bolt Holes
Most NACD products have provisions for attaching lifting bolts. The holes provided are
always of adequate size and number to safely lift the NACD product.
These lifting points must not be used to lift the complete power unit. Lifting exces-
sive loads at these points could cause failure at the lift point (or points) and result
in damage or personal injury.
Select lifting eyebolts to obtain maximum thread engagement with bolt shoulder tight
against housing. Bolts should be near but should not contact bottom of bolt hole.
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
4
Safety
General
Safe practices must be employed by all personnel operating and servicing this unit. NACD will not be
responsible for personal injury resulting from careless use of hand tools, lifting equipment, power tools, or
unaccepted maintenance/operating practices.
Important Safety Notice
Because of the possible danger to person(s) or property from accidents which may result from the use of
manufactured products, it is important that correct procedures be followed. Products must be used in
accordance with the engineering information specied. Proper installation, maintenance, and operation
procedures must be observed. Inspection should be made as necessary to assure safe operations under
prevailing conditions. Proper guards and other suitable safety codes should be provided. These devices
are neither provided by NACD nor are they the responsibility of NACD. The maximum safe operating
speeds of this 11.5" triple plate (TP) NACD power take-off is 2800 RPM.
Sources of Service Information
Each series of manuals issued by NACD is current at the time of printing. When required, changes are
made to reect advancing technology and improvements in state-of-the-art.
Individual product service bulletins are issued to provide the eld with immediate notice of new service
information.
For the latest service information on NACD products, contact any NACD distributor, or contact the sales
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com 5
DESCRIPTIONS & SPECIFICATIONS
General
The NACD 11.5" TP Power Take-Off are engine mounted power take-offs that use cast
iron two-piece housings and contain an integral triple plate clutch 11 1/2 inches in di-
ameter. The engine drives the clutch through a drive ring that is bolted to the engine
ywheel and connected to the clutch through internal teeth that mesh with external teeth
on the clutch friction plate(s). Clutch engagement and disengagement for most units is
accomplished by use of the external hand lever assembly. Some units may use other
actuation methods.
Main bearings are lubricated and cooled with grease. Most units use pilot bearings that
are pre-lubricated and sealed for life, although some may require periodic re lubrication.
Those that require periodic lubrication are lubricated through a grease tting located in
the output end or side of the clutch shaft.
Warranty
Equipment for which this manual was written has a limited warranty. For details of the
warranty, refer to the warranty statement at the end of this manual.
North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
INSTALLATION
Preliminary Checks
Note: All measurements must be taken with the engine or motor mounted on its sup-
ports after the ywheel and housing have been thoroughly cleaned.
1.
2.
Figure 1: Checking Flywheel Housing Face
3.
4.
Figure 2: Checking Flywheel Housing Bore
5.
6.
Measure and record the engine crankshaft or motor shaft end play using a dial indica-
tor. Record this value, as it will be used later. ______________
Attach the indicator to the ywheel so the indicator is perpendicular to the ywheel
housing face and the indicator stem rides on the ywheel housing face.
See Figure 1.
Rotate the shaft through on entire revolution
and note the run out. The total indicator reading
must not exceed .008" (.2mm). Apply thrust onto
crankshaft in one direction to prevent crankshaft
end play from affecting run out measurement.
Reading the indicator so the stem rides on the
pilot bore of the ywheel housing. See Figure 2.
Rotate the shaft through one entire revolution
and note the run out. The total indicator reading-
should not exceed .008" (.2mm).
Remove the indicator base from the ywheel
and attach it to the ywheel housing face. Posi-
tion the indicator stem so that it rides where the
drive ring will set on the ywheel face.
See Figure 3.
Figure 1
Figure 2
6
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