SECTION I
GENERAL
T o provide user and support personnel Supplemental maintenance and
1.
Purpose:
repair parts instructions that have special application to non-developmental
items of equipment.
This publication applies to Department of the Army units, organizations/
2.
Scope:
activities that use and support the Harnischfeger Crane, Crawler, 40 Ton, Model
5060. The expected life of this crane is 20 years.
N o n - D e v e l o p m e n t a l Item (NDI):
T h i s crane has been approved for use by TO & E/
TDA Organizations. The end item will be supported by Commercial/Military Publications
and repair parts supplied by the military supply system or local dealers.
Transportability/Bridge classification data is available by calling U.S. Army
Tank-Automotive Command, DRSTA-MVB, AUTOVON 786-8901.
Description:
T h i s crane is crawler mounted, 40 ton, Model 5060, and is
manufactured by Harnischfeger Corporation at their Escanaba, Michigan plant.
The crane is full revolving and has the capability of extending/retracting the
side frames to accomodate counterweights for stability and control. The operational
and maintenance procedures are covered in the manufacturer's manuals overpacked
with each unit, This crane is a friction and hydraulic machine. All upper work
functions are performed by friction clutches and brakes. Hydraulic cylinders
are used to apply the clutches and planetary brakes. The drum, swing and boom
hoist brakes are released by hydraulic cylinders working against the brake's
spring actuators.
T h e engine (4-71-T) serves as the power source for the upper and lower drive
systems. Power is transferred through the torque converter into the worm shaft.
This shaft drives the boom hoist shaft, maint shaft, and swing shaft by a
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