© 2002 Manitowoc Cranes, Inc.
Rev. 04-08-2002 Folio 1349-1
SAFE MAINTENANCE PRACTICES
MAINTENANCE INSTRUCTIONS
To ensure safe and proper operation of Manitowoc cranes,
they must be maintained according to the instructions
contained in the Service or Operator’s Manual provided with
each crane.
A manual holder is provided in the operator’s cab of every
crane manufactured by Manitowoc Cranes. A copy of the
Service or Operator’s Manual must be kept in the holder so
the manual is immediately available for use by operators and
maintenance personnel. If the manual is missing, contact
your Manitowoc distributor for a replacement copy.
Crane maintenance and repair must be performed by
personnel who by reason of training and experience are
thoroughly familiar with the crane’s operation and required
maintenance.
These personnel must
read Service or Operator’s Manual
before attempting any maintenance procedure
. If there is any
question regarding maintenance procedures or
specifications, contact your Manitowoc distributor for
assistance.
Training/qualification of maintenance personnel is
responsibility of crane owner.
SAFE MAINTENANCE PRACTICES
1.
Perform following steps (as applicable) before starting a
maintenance procedure:
a.
Park crane where it will not interfere with other
equipment or operations.
b.
Lower all loads to ground or otherwise secure them
against movement.
c.
Lower boom onto blocking at ground level, if
possible, or otherwise secure boom against
dropping.
d.
Move all controls to off and secure all functions
against movement by applying or engaging all
brakes, pawls, or other locking devices.
e.
Stop engine and render starting means inoperative.
f.
Place a warning sign at start controls alerting other
personnel that crane is being serviced and engine
must not be started.
Do not remove sign until it is
safe to return crane to service.
2.
Do not attempt to maintain or repair any part of crane
while engine is running, unless absolutely necessary.
If engine must be run, keep your clothing and all parts of
your body away from moving parts.
Maintain constant
verbal communication between person at controls and
person performing maintenance or repair procedure.
3.
Wear clothing that is relatively tight and belted.
4.
Wear appropriate eye protection and approved hard hat.
5.
Never climb onto or off a moving crane.
Climb onto and
off crane only when it is parked.
Use
both hands
and handrails, steps and ladders
provided to climb onto and off crane.
Lift tools and other equipment which cannot be carried in
pockets or tool belts onto and off crane with hand lines or
hoists.
6.
Boom and gantry are not intended as ladders. Do not
attempt to climb lattice work of boom or gantry to get to
maintenance points. If boom or gantry is not equipped
with an approved ladder, lower them before performing
maintenance or repair procedures.
7.
Do not remove cylinders until working unit has been
securely restrained against movement.
8.
Pinch points are impossible to eliminate; watch closely
for them.
9.
Pressurized air and hydraulic oil can cause serious
injury. Make sure all air and hydraulic lines, fittings, and
components are tight and serviceable.
Do not use your hands to check for air and hydraulic oil
leaks:
•
Use a soap and water solution to check for air leaks
(apply to fittings and lines and watch for bubbles).
•
Use a piece of cardboard or wood to check for
hydraulic oil leaks.
10.
Relieve pressure before disconnecting air and hydraulic
lines and fittings.
WARNING
The importance of safe maintenance cannot be over
emphasized. Carelessness and neglect on the part of
maintenance personnel can result in their death or injury
and costly damage to the crane or property.
The safety information in this publication is intended only
as a guide to assist qualified maintenance personnel in
safe maintenance. Manitowoc cannot foresee all hazards
that will arise in the field; therefore,
safety remains
responsibility of maintenance personnel and crane owner.
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