India Mark III Head Flange Replacement

Andrew Optimus Goldheart et 4 autres contributeurs

Dernière mise à jour le July 16, 2019

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Ce tutoriel est uniquement destiné à être utilisé comme prérequis d'autres tutoriels. Il ne se suffit pas à lui-même.

Introduction

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Outils

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Étape 1 Access Door

India Mark III Head Flange Replacement, Access Door: étape 1, image 1 de 2

India Mark III Head Flange Replacement, Access Door: étape 1, image 2 de 2

Before performing any repairs, perform a water test on the pump by raising and lowering the handle a full 40 strokes. A properly performing pump will yield greater than 10 liters.
Remove the hex head bolt from the top of the access door on the pump head.
On reassembly, this bolt should be hand-tight.

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Étape 2

India Mark III Head Flange Replacement: étape 2, image 3 de 3

Pull the access door straight up off the pump head.
Store the access door in a sanitary place to prevent contamination.

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Étape 3

The access door has a tongue that fits into the base of the pump head.
The access door makes a convenient tray to hold nuts and bolts during the disassembly.

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Étape 4 Chain

India Mark III Head Flange Replacement, Chain: étape 4, image 1 de 3

India Mark III Head Flange Replacement, Chain: étape 4, image 2 de 3

India Mark III Head Flange Replacement, Chain: étape 4, image 3 de 3

Place the spacer collar around the pump rod below the raised chain, with the beveled side down, and the flat side facing up.

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Étape 5

India Mark III Head Flange Replacement: étape 5, image 3 de 3

The following procedure requires two people. If you attempt to do this alone, you risk injuring yourself and damaging the pump.
Lift the pump handle until the base of the chain comes to rest on the spacer collar, and the chain is slack. Hold the handle in this position while the chain is being detached.

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Étape 6

India Mark III Head Flange Replacement: étape 6, image 3 de 3

Using the two access holes, place an angled socket wrench on the bolt and nut attaching the chain to the pump handle.

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Étape 7

India Mark III Head Flange Replacement: étape 7, image 3 de 3

Hold the wrench on the bolt stationary.
Loosen the nut.

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Étape 8

India Mark III Head Flange Replacement: étape 8, image 3 de 3

Remove the nut from the chain bolt.

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Étape 9

Remove the washer from the chain bolt.

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Étape 10

Remove the chain bolt.

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Étape 11

India Mark III Head Flange Replacement: étape 11, image 3 de 3

Pull the top of the chain straight off of the pump handle.

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Étape 12 Head

India Mark III Head Flange Replacement, Head: étape 12, image 1 de 3

India Mark III Head Flange Replacement, Head: étape 12, image 2 de 3

India Mark III Head Flange Replacement, Head: étape 12, image 3 de 3

Remove the two bolts from the handle side of the pump head.
Use one wrench on the bolt and another on the nut beneath. Hold the bolt stationary and loosen the nut.

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Étape 13

India Mark III Head Flange Replacement: étape 13, image 3 de 3

Remove the two bolts and nuts from the handle side.

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Étape 14

After removing the two handle side bolts, have your partner support the weight of the handle.
Remove the two remaining bolts in the same fashion.

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Étape 15

India Mark III Head Flange Replacement: étape 15, image 3 de 3

Lift and remove the pump head from the pump.
Store the pump head in a sanitary place, preferably above ground, to prevent contamination.

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Étape 16 Chain

India Mark III Head Flange Replacement, Chain: étape 16, image 1 de 2

India Mark III Head Flange Replacement, Chain: étape 16, image 2 de 2

Slightly twist the head flange, until the corners overhang the top of the tank far enough to grab.

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Étape 17

India Mark III Head Flange Replacement: étape 17, image 3 de 3

Lift the head flange up about one foot above the tank.

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Étape 18

India Mark III Head Flange Replacement: étape 18, image 3 de 3

Slide the rod clamp around the pump rod, and support it on the tank base.
Make sure the pegs in the base of the rod clamp fit into the appropriate holes in the top of the tank.

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Étape 19

Tighten the rod clamp against the pump rod.
Be sure the pump rod is centered within the jaws of the clamp and held securely.

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Étape 20

Lower the head flange.

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Étape 21

India Mark III Head Flange Replacement: étape 21, image 3 de 3

Unscrew the chain from the top of the pump rod.
Remove the chain.
Check the chain for signs of wear or damage.
Set the chain in a sanitary place, such as the access door that was previously removed.