Multiquip S-500SERIES SUB. PUMP - MAINTENANCE, Lubrication, Disassembly, Impeller, Oil Check

S-500 SERIES SUB. PUMP — MAINTENANCE

LUBRICATION

To check the oil level of the mechanical seal perform the following:

DISASSEMBLY

Refer to Figure 11 for location of parts to be removed.

1.Position pump upside down.

2.Remove strainer.

3.Remove casing.

2.While checking the hydraulic oil level, also check the condition of the hydraulic oil in the seal cavity . Block the opening with a finger and roll pump to one side to drain oil into a small transparent container.If oil is cloudy or has water in it, drain oil from pump cavity and replace hydrau- lic oil. Check the seal for wear damage.

3.If oil level is low fill with SAE 10 weight non-detergent hydraulic oil (i.e.ShellTurbo 32 or equivalent). Fill oil cavity 75% to 85% full (allow air space for expansion). See Table 1 for pump oil cavity capacity.

IMPELLER

4. Remove the pump impeller.

1.

5.Remove the liner.

6.Remove the oil plug and packing.

2.

OIL CHECK

1.Visually inspect oil plug hole to verify that oil cavity is full enoughtocoversealspring.Checkevery300hours,change hydraulic oil every 6 months (1,000 hours) or as needed.

Make sure the clearance between the impeller and the friction disk is approximately .012 - .020 inches (.304 -

.508 mm.)

If impeller is defective or badly worn, replace impeller imme- diately.

REMOVE FILL PLUG, AND VISUALLY INSPECT THAT

OIL CAVITY IS FULL ENOUGH TO COVER SEAL SPRING.

FILL TO 75-80% CAPACITY SEE TABLE 1 FOR FILLING CAPACITY.

FILL WITH 10 WEIGHT NON- DETERGENT HYDRAULIC OIL. USE SHELL TURBO 32 OR EQUIVALENT.

CHECK HYDRAULIC OIL EVERY 300 HOURS. CHANGE EVERY 6 MONTHS OR AS NEEDED.

DISCOLORATION OF OIL (MILKY) INDICATES A LEAKING PUMP WATER SEAL.

STEP 2

REMOVE STRAINER

STEP 3

REMOVE

POSITION

STEP 1 PUMP UPSIDE DOWN

CASING

STEP 4

REMOVE

IMPELLER

500-S

S-500

STEP 5

REMOVE

LINER

STEP 6
REMOVE
OIL PLUG
AND
PACKING	OIL
CASING	CAVITY
COVER

Figure 11. Checking Hydraulic Oil

S-500 SERIES SUBMERSIBLE PUMPS — OPERATION & PARTS MANUAL — REV. #0 (10/01/04) — PAGE 19