Maintenance - MULTIQUIP ST2037F Operation And Parts Manual

PUMP SHUT-DOWN/CLEAN-UP
1. Remove the power from the pump by turning off the
circuit breaker or switch that provides power to the
pump. Remember to make sure that hands are dry (not
wet), and feet are not standing in water when removing
disconnecting power from the pump.
2. Using the lifting rope, lift the pump up from its current
position. Remove the discharge hose from the
discharge port on the pump.
3. Remove all power cables. Place cables and float
switches in a suitable container where they will not
get damaged.
4. If the pump was used to pump mud, grit or silt, flush
vigorously with clean water.
5. Remove the pump from the water. Wipe off any mud
or debris that might have attached itself to the pump.
6. Store pump in a clean dry place away from dirt and
debris.
DISASSEMBLY
To check the oil level of the mechanical seal, perform the
following disassembly procedure then perform oil check.
Refer to Figure 11 for location of parts to be removed.
For Model ST2040TF:
1. Position pump upside down.
2. Remove casing.
3. Remove the pump impeller.
4. Remove the oil plug and packing.
For Model ST-2037F:
1. Position pump upside down.
2. Remove strainer.
3. Remove casing.
4. Remove the pump impeller.
5. Remove the liner.
6. Remove the oil plug and packing.
PAGE 16 — ST2037F/2040TF SUBMERSIBLE PUMP • OPERATION AND PARTS MANUAL — REV. #3 (12/14/17)

MAINTENANCE

OIL CHECK
1. Check pump oil at oil cavity plug (Figure 8). Check
every 300 hours and change hydraulic oil every 6
months (1,000 hours) or as needed.
2. While checking the hydraulic oil level, also check
the condition of the hydraulic oil in the seal cavity.
Discolored milky oil indicates a failure of the water seal.
If this occurs, replace water seal.
3. If oil level is low fill with SAE 10 weight non-detergent
hydraulic oil (i.e. Shell Turbo 32 or equivalent). Fill oil
cavity 75% to 85% full (allow air space for expansion).
See Table 1 for mechanical seal oil capacity.
IMPELLER
1. If impeller is defective or badly worn, replace impeller
immediately.