REPAIR - TM-55-1905-223-24-70148

TM 55-1905-223-24-7

NOTE

Do not rotate shaft with manifold removed. Pump will lose prime in the

hydraulic end if rotated.

b. Lift manifold (13) off pump and remove preformed packings (14 and 15). Discard packings.

Remove discharge (outer) valves:

On plumbing end of valve plate (21), remove three helical compression spring retainers (16) (only one set shown),

helical compression springs (17), valve disks (18), valve seats (19), and preformed packing (20). Discard

packings.

d. Lift valve plate (21) off pump and place shaft side up on flat surface.

e. Remove suction (inner) valves:

On shaft end of valve plates (21), remove three helical compression spring retainers (16) (only one set shown),

helical compression springs (17), valve disks (18), valve seats (19), and preformed packings (20). Discard

packings.

REPAIR

Repair of the solution end of the pump is by replacement of preformed packings (14, 15 and 20).

ASSEMBLY

a. Install suction (inner) valves:

(1)

Install three helical compression spring retainers (16).

CAUTION

When replacing helical compression spring retainers (16), make sure that

the leg of the retainers does not point toward the inside (center) of the

pump, or damage to valves will result.

(2)

On SHAFT END side of valve plate (21), install three new preformed packings (20), three valve seats (19),

valve disks (18), and helical compression springs (17).

b. Install valve plate (21) on pump.

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