MP Pumps HTO 300 INSTALL - Manual (Page 2)

MP PUMPS HTO SERIES
OPERATION AND MAINTENANCE
Thermal oil vapors leaking from a system can be
highly flammable.
Any system leak should be repaired immediately.
Do not insulate the pump or system piping with
porous flammable insulation. Fluid may wick,
decompose and spontaneously ignite.
Ideal mechanical seal life is 20,000 hours.
Reduced seal life may be experienced from
extreme conditions.
Recommended spare parts and service parts to
rebuild the HTO-120 are:
At disassembly, check the impeller and other
wear items for unusual wear. Replace if
necessary.
When servicing the pump, care should be taken
that the pump has cooled to a sufficient
temperature to permit disassembly. The
product should be drained from the pump
housing and disposed in accordance with the
fluid manufacturer's recommendations.
Operating personnel should be warned to
exercise care and utilize eye and skin protection
when servicing the pump.
HTO 300 ASSEMBLY INSTRUCTIONS
- 2 -
1. Press the seal seat (part of #5) into the seal
housing #4.
2. Set the drive sleeve #7 standing up on the
workbench with the threaded end up. Place
the seal housing #4 on the sleeve with the
seal seat facing up.
3. Lubricate the seal head's o-ring (part of #5)
and slide it over the sleeve.
4. Install snap ring #6 into the groove on the
sleeve.
5. Install the pipe plug into the seal housing.
Use sealant on the threads.
6. Install the three gaskets #8, two graphite
isolators #9, and o-ring #10 over the drive
sleeve onto the seal housing.
7. Place the seal housing assembly from step 6
into the adapter #13 and install 3 capscrews
#3 through the seal housing and into the
adapter. Torque the capscrews to 20 ft-lbs. in
5 ft-lbs. increments.
8. Apply Loctite onto the drive sleeve threads
and install the impeller #14 by threading it
onto the sleeve. Make sure that the impeller
shoulders against the sleeve.
9. Position the gasket #15 onto the adapter and
install the housing #16 to the adapter using
eight capscrews #11 and lockwashers #12.
10. Slide the fan clamp #2 onto the sleeve with
fan blades closest to the seal housing. The
pump end assembly (Pumpak) is complete.
11. Pumpak assembly to the motor as follows:
1. Place 5/16x5/16x.5 key into the key slot
of the motor shaft.
2. Slide the Pumpak onto the motor with
the shaft/key indexed to lineup with a
slot in the pump sleeve.
3. Install and tighten (4) 1/2"–13 capscrews
onto the motor flange with
40 ft-lbs. torque.
4. Reaching through the inlet of the pump
push the impeller back towards the
motor until it stops up against the
carbon isolators.
5. While holding the impeller in this
position, tighten the fasteners of the
fan clamp with 15 ft-lbs. torque.
6. Rotate impeller to check for contact
with stationary parts.
7. Install piping.
8. After wiring the motor, check rotation by
momentarily applying power and viewing
the rotation of the fan clamp. Viewed
from the motor end, the clamp should
rotate in a clockwise direction.
PART NO. DESCRIPTION QTY.
29822 DRIVE SLEEVE 1
26744 GASKET 1
30842 ISOLATOR 2
PART NO. DESCRIPTION QTY.
34933 SEAL ASSEMBLY 1
29825 GASKET 3
30841 O-RNG 1