Grundfos JP Service Instructions

English (GB)
10
1. Clamp the motor shaft end in a vice with soft copper or
aluminium jaw faces to protect the shaft end. See fig. 12.
2. Lubricate the seal disc opening. See section 7.1 Lubricant.
Fig. 20 Lubricating the seal disc
3. Fit the stationary part of the shaft seal (16a) inside the seal
disc (15).
Fig. 21 Fitting the stationary part of the shaft seal
4. Lubricate the shaft. See section 7.1 Lubricant.
5. Place the seal disc (15) with the stationary part of the shaft
seal (16a) on the shaft and make sure the seal disc (15)
centres on the motor flange.
Fig. 22 Lubricating the shaft and placing the rotating part of
the shaft seal.
6. Place the rotating part of the shaft seal (16) on the shaft and
press it down with two fingers.
Fig. 23 Fitting the rotating part of the shaft seal
6.3 Fitting the impeller
1. Fit the impeller (19) on the shaft.
2. Spin the impeller (19) clockwise and tighten by hand until you
feel the resistance of the mechanical stop.
Fig. 24 Fitting the impeller
6.4 Fitting the motor fan
1. Place the pump in a vertical position with the shaft end facing
upwards. The surface must be smooth or soft to protect the
impeller (15) facing downwards.
2. Fit the motor fan (14) on the shaft by hand.
Fig. 25 Fitting the motor fan
TM07 3823 0519TM07 3824 0519TM07 3825 0519TM07 3826 0519
TM07 3827 0519TM07 3828 0519
19
14

Grundfos JP Specifications

General

Power supply	Electric
Material	Stainless Steel, Cast Iron
Applications	pressure boosting
Pump Type	Self-priming centrifugal pump
Horsepower	1.5 HP
Phase	Single-phase
Inlet Size	1 inch
Outlet Size	1 inch