Overhaul of the Recompression Chamber fitted on board the CFAV Granby in Shearwater Nova Scotia.

Background

1.2.1 The Yard Diving Tender 12 comprised a six personnel
recompression chamber, one Worthington M-50H diesel-powered
water-cooled Low Pressure Compressor and one Bauer KA20-20DD
diesel-powered water-cooled High Pressure Compressor in the
compartment forward of the engine room. In the compressor room
there are four high-pressure gas cylinders and in the engine
room there are two low-pressure air receivers cross-connected.
The gas storage banks are on the upper deck midship which
comprises of eight oxygen cylinders and nineteen 84/16
helium-oxygen cylinders and two 50/50 helium-oxygen cylinders. A
fire suppression system water tank is located at the after end
of the chamber compartment.

1.2.2 This one hundred-twenty monthly (120M) overhaul will use
the modified sixty-monthly (60M) Pre-Overhaul survey done by
Fleet Maintenance Facility Cape Scott dated 2011-02-24; in which
an addendum has been included to reflect the additional work
needed to carry-out the 120M overhaul (see references).

1.3 Scope of Work

The following work shall be undertaken:

1.3.1 One hundred-twenty monthly preventive maintenance on the
Recompression Chamber, in accordance with Reference 2.2.1;

1.3.2 Replenishment of Consumables in accordance with Part 5
Section 3 of Reference 2.2.2;

1.3.3 Inspections in accordance with Part 5 Section 4 Reference
2.2.2;

1.3.4 All required tests in accordance with Part 8 of Reference
2.2.2 and 120M13 of Reference 2.2.4;

1.3.5 Proving the intercommunication system in accordance with
Part 3 Section 2 of Reference 2.2.2;
1.3.6 Verifying that the electrical system such as proving of
system function after broken connections are made good, all
subassemblies securely mounted, internal spaces in boxes clean
and dust free, connections intact and work described in
paragraph 4.8 and Annex D of Reference 2.2.3;

1.3.7 Pipe cleaning to be administered where necessary, to each
High pressure and Low pressure piping as directed by paragraphs
4.4 to 4.7 inclusive of Reference 2.2.3; and

1.3.8 Replenishment of gases in recertified cylinders in
accordance with Part 5 Section 3 of reference 2.2.2.

2. Applicable Documents

2.1 Applicability

2.1.1 The documents listed below are applicable only as set out
in the scope of work and requirements, sections 1 and 3 of this
document. The revisions of the documents listed below are those
in effect as of the date shown on the title page of this
Statement of Work.

2.2 References:

2.2.1 CFTO C-87-010-013/MZ-001 Overhaul Instructions Canadian
Forces Recompression Chambers;

2.2.2 CFTO C-87-226-000/MS-001 Operation & Maintenance
Instructions Yard Diving Tender-12 Recompression Chamber Fleet
Diving Unit (Atlantic);

2.2.3 Fleet Maintenance Facility Cape Scott Pre-Overhaul Survey
120M, Revision 0; Notification 4344867, Order 820173253 Dated
2012-04-03;

2.2.4 CFTO C-87-010-013/NY-001 Naval Preventive Maintenance
Schedule Recompression Chambers;

2.2.5 CFTO D-87-003-000/SG-001 Canadian Forces Standard - Purity
of Compressed Breathing Air and Gases for Divers.

2.2.6 CFTO C-94-010-003/MG-000 Compressed Gas Cylinders.

2.2.7 YDT Granby Recompression Chamber (RCC) Deferral Mitigation
Measures - Monthly Progress Report dated 13 March 2012.

Delivery Date: Above-mentioned

The Crown retains the right to negotiate with suppliers on any
procurement.

Documents may be submitted in either official language of Canada.