Multiquip MP150SDLTS, MP200DLTE Maintenance Pump, Engine Maintenance, Dry Pump Vacuum Test

Engine Maintenance

To ensure longer pump life and service, please follow the pump maintenance guidelines as listed in Table 6 and on preceeding pages.

Table 6. Pump Maintenance

	Check bearing housing.
	Check pump seal oil reservoir
Daily	Check vacuum pump seal oil reservoir.
	Check water level in vacuum system and anti-freeze
	concentration for weather conditions.
	Check for leaks and kinks in discharge hose.
	Check if water is clean and anti-freeze is right for
	conditions in vacuum system.
Every 250 Hours Check oil reservoirs for bearings, pump seal and
	vacuum pump seal for contamination, drain and
	replace if necessary.
	Check impeller bolt for tightness.
	Flush vacuum system water tank and fill with clean
Every 500 Hours	water. Add antifreeze if necessary.
	Check impeller condition and clearance. Adjust
	clearance as needed.
	Change oil in pump seal, pump bearing housing,
Every 1000 Hours	and vacuum pump seal reservoirs.
	Inspect discharge check valve for wear. Replace if
	necessary.

MAINTENANCE (PUMP)

Dry Pump Vacuum Test

To perform the pump vacuum test do the following:

1.Perform all start-up steps without installing the hoses.

2.Block the suction with a plug or heavy rubber flap as shown in Figure 12. An accurate vacuum gauge should be installed in the plug or flap to check vacuum system performance and pump vacuum gauge.

2.Start the engine and run at 1,800 RPM. Note the maximum vacuum reading.

3.Shut off the engine and check the vacuum reading.The vacuum reading should be .75 to .9 Bar or 25 to 27 inches. Vacuum reading should hold for about 3 to 10 minutes before dropping to zero.If vacuum reading drops fast, check for leaks and repair if necessary. Listen for leaks. If area is quiet, small air leaks should be easy to hear.

PUMP VACUUM

TESTER

Every 2000 Hours Grease vacuum pump bearings.

PLACE VACUUM TESTER OVER PUMP INLET.

				-15
		20			-
	-				10
			-60 -40
25			-80	-20	5
					-
-			-100
				kPa
		-		in. Hg
		30		R
				WIKA

ACCEPTABLE READING SHOULD BE BETWEEN -27 AND -25 IN. HG.

25 IN. HG TRANSLATES INTO 25 FEET OF LIFT AT SEA LEVEL.

(In. Hg = INCHES

OF MERCURY)

PUMP VACUUM TESTER

Figure 12. Dry Pump Vacuum Test

PAGE 28 —DRY PRIME PUMP — OPERATION MANUAL — REV. #3 (10/06/08)