SERVICING

63 CH FLOW SWITCH REPLACEMENT

1Disconnect the electrical supply.

2 Remove the front casing panel.

3 Remove the fork A.

4 Open the box B and disconnect the switch.

A

B

5Re---assemble in reverse order.

Refer to the following illustration for the correct wiring connectors on the switch

C

N.O.

do not use

Looking through the switch box B it is possible to verify the position of the spindle C

SERVICING

 

C

Boiler OFF

Pump operating

64CH FLOW SWITCH MEMBRANE REPLACEMENT

1Disconnect the electrical supply.

2Remove front casing panel (refer to frame 42).

3Close off the isolating cocks of the CH circuit at the bottom of the boiler.

4Release system pressure by opening the main circuit drainage cock.

Do not release CH pressure using the pressure relief valve. It may cause debris within the system to foul the valve.

5Remove the CH circuit flow switch (see frame 63).

6Unscrew the four screws A, open the hydraulic operator and remove the membrane B.

7Re---assemble in reverse order.

When assembling the membrane, ensure to place the

concave side of the membrane towards the actuator plate C and locate the reference hole in the membrane over the pressure transfer nipple D.

B

C

A

D

mini HE --- Installation & Servicing

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Mamiya C32, C28, C24 manual Servicing CH Flow Switch Replacement, CH Flow Switch Membrane Replacement

C28, C24, C32 specifications

The Mamiya C series is celebrated among photography enthusiasts for its unique twin-lens reflex (TLR) design, offering both a classic aesthetic and innovative features that set it apart in the world of medium format cameras. The C32, C24, and C28 models represent a range of technology and design advancements that cater to various shooting needs.

The Mamiya C32, introduced in the early 1970s, is renowned for its precision engineering and versatility. This model features interchangeable lenses, allowing photographers to switch between different focal lengths for creative flexibility. The camera supports 120 and 220 film formats, enabling higher film capacities for extended shooting sessions. An essential feature of the C32 is its built-in light meter, which enhances exposure accuracy by providing real-time readings. The camera's bright waist-level finder offers excellent viewing comfort and composition aid, attracting those who appreciate a more hands-on shooting experience.

Next in line, the Mamiya C24 offers a slightly more compact and lighter design, making it an appealing option for documentary and street photographers. While still featuring the electronic leaf shutter system utilized in the C32, the C24 omits built-in metering, which encourages users to develop their exposure skills. The lens selection remains robust, with options ranging from wide-angle to telephoto, allowing for creative versatility. The C24's rugged build quality and reliable shutter performance make it a trusted companion in various shooting conditions.

Lastly, the Mamiya C28 provides a perfect blend of portability and advanced capabilities. With its ergonomic design and improved lens coatings, the C28 offers enhanced image quality with better contrast and sharpness. Similar to its predecessors, it utilizes an interchangeable lens system but enhances user convenience through quick-to-use shutter speeds and aperture settings. The camera is also compatible with a range of accessories, such as flash units and close-up attachments, further expanding its creative potential.

In summary, the Mamiya C32, C24, and C28 each present unique features and technological advancements that cater to various types of photographers. Whether it's the precision of the C32, the compact convenience of the C24, or the versatile performance of the C28, these cameras maintain a special place in the hearts of medium format enthusiasts, showcasing the blend of craftsmanship and innovation that Mamiya is known for.