Replacing The Discharge Check Valve - DARLEY 2BE6.5H Operator's Manual

Honda engine driven portable pump

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Table of Contents

9. Using a 1" socket on the hex of the impeller (18), and an impact wrench, install the impeller by

turning it clockwise. A slight nudge with the impact wrench is all that is required to seat the impeller.

Do not exceed 30 ft-lb of torque when installing the impeller. Loctite is not needed.

10. Apply a light coating of silicone grease to the new o-ring (19) and install it on inboard head (9).

11. Apply Loctite 243 to the threads of eight stainless steel 5/16" NC hex head cap screws (12). [Note:

Two of these cap screws are the two that have already been put in the bottom of the inboard head (9)

in step 7.]

12. Using the eight stainless steel 5/16" NC hex head cap screws (12), install the pump casing (21) onto

the inboard head (9). Torque the 5/16" fasteners to 75 in-lb.

13. Reinstall the hand primer assembly (17), and tighten the two clamps [(3) Ref. Drawing DGC0214].

14. Reconnect hand primer hose [(11) Ref. Drawing DGC0214].

15. Apply Loctite 243 to the threads of the three thumbscrews (22) used to hold the recoil starter to the

engine (5).

16. Using the three stainless steel thumbscrews (22) reinstall the recoil starter onto the engine (5).

17. Apply silicone grease to the porcelain of the sparkplug to prevent moisture from entering the

sparkplug wire cap. Reconnect the sparkplug wire to the sparkplug.

1. Remove three 3/8" NC socket head cap screws (26) and the discharge head (2) and check valve

gasket (8).

2. Clean the flange surface of both the discharge head (2) and the pump casing (21). Remove any

mineral deposits, sludge, etc. Inspect flanges for damage such as severe pitting, and nicks in sealing

surface, that may not allow good sealing. Replace the pump casing and discharge head as needed.

REASSEMBLY

3. Apply Loctite 243 to the threads of the three stainless steel 3/8" NC socket head cap screws (26).

4. Using the three 3/8" NC socket head cap screws, install the discharge head (2) to the pump casing

(21), with the new discharge check valve gasket (8) sandwiched between the two flanged surfaces.

Tighten the screws evenly to ensure uniform compression on the gasket and to avoid warpage of the

sealing surfaces. Final torque for the 3/8" NC fasteners should be 140 in-lb.

Note: The smaller washer on the discharge check valve gasket faces the pump casing.

Prepared by: TED

Approved by: MCR