Manriding Operations
• OBJECTIVE
The purpose of this procedure is to ensure the safety of
manriding operations and safe use of “Man Riding”
winches.
Further it is intended to reduce manriding operations by
assessing all alternative methods of access for the
intended operation. These alternatives shall be fully
evaluated and assessed first and manriding operations
only carried out if no alternative is available.
It is counter productive and NOT intended to introduce
alternative means of access which would involve greater
risk than that posed as a result of manriding.
Manriding Operations
• BACKGROUND INFORMATION
Man Riding operations can be extremely hazardous if not
properly managed, with clear procedures and
instructions that are followed by all parties involved.
There have been a number of fatalities during manriding
operations in the offshore industry. With this is mind
“Step Change in Safety” set up a working group in
January 2001 to look into manriding operations and a
cross industry best practice guide has been produced.
The Health & Safety Executive has also issued interim
guidance. This procedure takes into account these
documents.
Manriding Operations
• RESPONSIBILITIES
The OIM has the overall responsibility for all operations.
He shall ensure that all manriding operations are conducted
under the Permit to Work System
The Snr. Toolpusher is responsible for the safe conduct of all
Drilling Department functions including maintenance and use
of man riding winches (manriders).
The senior department supervisor on duty is directly responsible
for the safe use of all manriding winches and in particular for
ensuring this procedure is strictly enforced to safeguard all
personnel engaged in lifting operations.
All personnel involved in man riding have an individual
responsibility to ensure the equipment and procedures are fit
for purpose prior to engaging in Manriding Operations.
Manriding Operations
• TRAINING/COMPETENCY
Only personnel trained by a competent supervisor in the
correct procedures for the operation and safe use of man
riding harnesses and winches may be involved in man
riding operations.
A person cannot be deemed competent unless he has
been trained and assessed against pre-determined
criteria for the task.
Once trained the person must demonstrate he can perform
the task to the required standard consistently. Maersk
Contractors Drilling Division Aberdeen competency
requirements for Manriding Operations are laid out in
appendix “D” “Competency Requirements”.
Manriding Operations
• HAND SIGNALS
Only the hand signals as described in appendix A shall be used
during manriding operations. No other movement signals shall
be used at any time.
Note: NO SIGNAL NO MOVEMENT
The hand signals are in line with cross industry guidelines.
There must be a man (banksman) stationed in such a position
that he can see both the winch operator and the man in the
riding belt at all times, during the entirety of the operation.
Under no circumstances must manriding operations take place
where there is no visual contact between the man aloft, the
banksman and the winch operator.
Manriding Operations shall always to be conducted with a
minimum of three persons as described above.
Manriding Operations
•
PREPARATION FOR MANRIDING
OPERATIONS
1.
Only winches identified and marked as being “suitable for manriding”
operations may be used for lifting personnel. These winches are painted
yellow for identification. And on these winches the following should be
fitted:
a) The operating lever automatically returns to the
neutral position when released. The action of pushing
the lever away from the operator lowers the winch and
the action of pulling the lever towards the operator
raises the winch
b) Two automatic brakes which activate when the operating
lever is in the neutral position, or on the loss of power, are
fitted.
Or
Manriding Operations
• PREPARATION FOR MANRIDING
OPERATIONS
c) One automatic and one manual brake are fitted.
d) The last 50 ft of wire on the drum are painted red to
warn the operator he is approaching the end of the
rope.
e) Winches must be fitted with a line force-limiting
device. Where winches with line force limiting
devices are not fitted, existing winches should be
replaced as soon as possible. Until such time as new
winches are fitted, care should be taken, particularly
where “blind” man riding operations are to be
carried out.
Manriding Operations
• PREPARATION FOR MANRIDING
OPERATIONS
f) Winches must be fitted with an emergency stop
device visibly marked and situated at the operators
control station.
g) All winches should be fitted with a device to prevent
inadvertent operation of the winch.
h) An overhoist protection device placed around 4 ft
above the manriding’s head (This could be oversized
link.)
i) Drum Guards
Manriding Operations
• PREPARATION FOR MANRIDING
OPERATIONS
j) A Crown block sheave complete with fall protection
for all components including sheave (safety slings).
k) A dedicated and fully certified winch wire rope with a
rope termination that fully complies with the
requirements of L.O.L.E.R.
l) A simple connecting device from the winch to the
harness which can only manually activated. This
could be a “D” shackle with locking pin.
Manriding Operations
• PREPARATION FOR MANRIDING
OPERATIONS
m) If practical a secondary/additional fall arrestor fitted
to the harness i.e. inertia reel could be considered.
n) The person man riding is to wear a high visibility
armband and a hard hat with the chinstrap securely
fitted.
o) A full body type harness and lanyards for securing
all tools are required.
Manriding Operations
• PREPARATION FOR MANRIDING
OPERATIONS
All man riding winches are inspected weekly. This
includes
- a visual check of the wire, achieved by spooling it
off the drum,
- examination of the dead end and a function test of
the brakes.
These checks shall be entered into the PM system.
Manriding Operations
• PREPARATION FOR MANRIDING OPERATIONS
Each time a rope is re-terminated the system is
load tested to the stall point of the winch
against the tie down points. The results of
the test shall be recorded in the IADC Drilling
report and in PM system records.
Manriding Operations
• PREPARATION FOR MANRIDING OPERATIONS
The traveling block shall not be moved nor the string
rotated while personnel are working in the derrick on
a man riding winch. The casing stabbing board shall
not be moved whilst there is a man working aloft on
a man riding winch. If ongoing operations require
both man riding and stabbing board use then the
stabbing board must be set at the desired height
prior to the man riding operation taking place.
NB
Once man riding operations commence no other
operations are to be conducted at the same time in
the vicinity of the man riding operations.
Manriding Operations
• PREPARATION FOR MANRIDING
OPERATIONS
Where fitted, the drill string compensator shall be
locked prior to hoisting personnel into the derrick on
a man riding winch.
P & I Manual Procedure 20.03 must be considered
regarding wind speed.
No man riding operations will be conducted through
the rotary nor shall man riding operations be
conducted between decks. Man riding winches
should be supplied in the areas that the intended
tasks are to take place.
Manriding Operations
• PREPARATION FOR MANRIDING
OPERATIONS
There must be a man (banksman) stationed in
such a position that he can see both the
winch operator and the man in the riding belt
at all times during the entirety of the
operation.
Under no circumstances shall man riding
operations take place where there is no
visual contact between the man aloft, the
banksman and the winch operator.
Manriding Operations
• PREPARATION FOR MANRIDING OPERATIONS
Radios may be used as an aid to
communications where detailed instructions
are required to be exchanged during the
operation.
However radios MUST NOT AND SHALL NOT
be used as a sole means of communication
between the person man riding and the
winch operator.
Further the radios shall not replace hand
signals as the means by which movement is
communicated and achieved.
Manriding Operations
• Preparation of Personnel
• Two people are assigned to co-ordinate each man
riding operation- one to operate the winch and one
to act as banksman.
• Before beginning any man riding operation the
senior supervisor in charge shall ensure: a Permit to
Work and the Pre-Manriding checklist has been
completed. Those checks shall include but not be
limited to:
a) All personnel involved are correctly
trained/competent and fully briefed in both the task
and the hand signals/communications to be used.
Manriding Operations
• Preparation of Personnel
b) Harnesses are thoroughly inspected to confirm the
absence of defects and have correct certification.
c) Harnesses and appropriate PPE are used and
correctly fitted. And hard hat is secured with a chin
strap.
d) The man riding winch is function tested for correct
operation.
e) Communications are tested and understood.
f) The man in the harness should not be connected to
the winch wire until the traveling equipment is
stopped.
Manriding Operations
•
Preparation of Personnel
g) Toolbox talk held and risk assessment carried out and recorded
before each operation is commenced.
h) Tools and equipment taken aloft must be secured by means of a
lanyard to safe anchor point i.e. the winch wire (???).
i) A personal check must be made to ensure that no loose items
are retained in the lifted crew member’s pockets.
j) The man riding register shall be filled in by the responsible
person prior to any man riding operation.
k) An emergency plan is ready and understood by all concerned.
Manriding Operations
Operation
During and at the end of man riding operations:
The banksman co-ordinates man riding lifting operations.
He shall:
- Remain in sight of both man working aloft and the winch
operator and control winch operation as signaled by the
man aloft.
- Ensure that any area below the man aloft is kept clear
and that no personnel stand or work below him.
- The winch man shall remain by the winch and operate it
as instructed by the nominated banksman and only by
him.
Manriding Operations
Operation
- The man riding the winch shall maintain contact with
the banksman.
- At the end of the operation a debriefing will take
place and the area will be cleared for the next
operation to take place safely.
Note: Should any part of the operation change that
was not planned or discussed at the briefings or any
personnel that commenced the task be required to
change then the operation will stop immediately and
further briefings take place. This may involve a
further risk assessment.
Manriding Operations
Pre-Manriding Check list
The Pre-Manriding checklists are to be
used to ensure that all precautions
and procedures used to control man
riding operations have been
accounted for prior to and at the end
of the task.
Manriding Operations
Emergency Plans
Although the purpose of risk assessments,
planning, toolbox talks etc. is to reduce the
possibility of incidents occurring to A.L.A.R.P. ,
the possibility of an incident occurring and a plan
of actions to be taken in the unlikely event of an
incident must be considered prior to any task
being undertaken.
The same applies to man riding operations,
therefore it is prudent to include this as part of a
risk assessment, plans, toolbox talks etc.
Manriding Operations
Emergency Plans
These “Emergency Plans” could include the use of:
- How long has the man been in the harness, therefore can
he safely remain where he is whilst repairs are ongoing.
- Availability and use of a secondary winch.
- Availability and use of a cherry picker.
- Availability and use of a rescue basket.
- Fitting an emergency manual lowering device on the
main winch (this is not a free fall device rather a
controlled device).
- Alternative supply to winch such as nitrogen or rig air.
- Radios, spare harnesses, rope, spare shackles or
stabbing board.
Manriding Operations
Overside Work and Radios
Where man riding operations are to be conducted
overside and/or with radios then careful planning
and communication is required:
- The standby boat shall be called, shall be at
close standby and be able to maintain close
standby prior to the task commencing.
- Radios shall be used and a close standby watch
maintained with direct contact with the Control
Room (on a Semi-Submersible) or Radio Room
(on a Jack up). The standby watch shall keep
the person in sight at all times during the task.
Manriding Operations
Overside Work and Radios
-
The radios shall be fully charged prior to use, maintained and fully
operational.
A single dedicated channel shall be used with that has no other
traffic.
UHF radios are to be used.
Recognized radio protocol is to be observed at all times i.e. the use
of term “over” when you have completed your statements.
No chatting over the radio when operations are ongoing.
Radios shall be returned after use, checked for correct operation
and condition and then placed on charge.
Items ‘b - h’ applies to using radios to assist topside man riding
operations.
Manriding Operations
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Documentation
Manufacturer’s Instructions
Permit to Work Procedure
Statutory Instruments
Procedure – Adverse Weather Policy
Risk Assessments
Step Change in Safety Best Practice Guide to Man-riding
Safety.
Filing
Man-riding Register
Pre-Man-riding Checklist
Training and Competency Records.