MULTIQUIP QP2TZ, Operation And Parts Manual

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QP TRASH PUMPS — IMPELLER REPLACEMENT KIT INSTRUCTIONS
— REV. #0 (03/17/09)
— PAGE 1 OF 2
QP2TE, QP2TH and QP2TZ Trash Pumps
Impeller Replacement Kit
The following instructions are intended to assist the user in the removal of the old style impeller and installing a new
easily removable impeller. Please read all assembly instructions before installing the kit.
PARTS
Verify that all parts are accounted for. See Table 1.
WORK SAFELY!
Only a qualifi ed service technician with proper training
should perform this installation. Follow all shop safety rules
when performing this installation.
OLD STYLE IMPELLER REMOVAL
Place the pump on level secure surface that is free of 1.
dirt and debris.
Remove drain cover (Figure 2. A ). Set drain cover aside
in a safe place.
Using a 3/8 ratchet with a 12 mm socket (Figure 3. B ),
remove the impeller bolt from the engine shaft. Discard
the impeller bolt . It will not be used again.
Attached to the impeller bolt (Figure 4. C ) are two
impeller washers. Discard the smaller impeller lock
washer ; it will not be used again. Retain the larger
impeller fl at washer .
Impeller Kit Parts Table 1.
Item Qty. Part No. Description Remarks
1 1 1890040031ASSY
KIT, IMPELLER
(QP2TH and QP2TE)
INCLUDES ITEMS
3 THRU 7
2 1 2258040031ASSY
KIT, IMPELLER
(QP2TZ)
INCLUDES ITEMS
3 THRU 7
3 1 1889040031 IMPELLER QP2TE/QP2TH
3 1 2258040031 IMPELLER QP2TZ
4 1 0191190544 BOLT
5 1 0458220080 WASHER, LOCK
6 1 0482200180 O-RING
7 1 0520030310 KEY, SHAFT
Using a can of Chemsearch™ (Figure 5. D ) or equivalent,
a moly-lubricant, spray the area around the shaft key.
To break loose the impeller, drill two 7/32-inch holes 6.
into the impeller as shown in Figure D . Next, use a
1/4-inch tap on the pre-drilled holes.
Insert a 1/4 bolt (Figure 7. D ) into each side of a steering
wheel type puller. Align the two bolts on the puller
with the pre-tapped holes and tighten. Insert a 70 MM
bolt into the center opening of the puller. Using a 12
MM socket, turn the bolt clockwise until the impeller
breaks free.
Remove the 8. impeller and shaft key . They will not be
used again.
NEW STYLE IMPELLER INSTALLATION
Install new impeller and shaft key onto the engine shaft 1.
as shown in Figure E .
Place new o-ring into impeller groove as shown in 2.
Figure F .
Using new impeller bolt, place new impeller lock washer 3.
onto the bolt as shown in Figure G . Next, place the large
impeller fl at washer onto the impeller bolt.
Insert impeller bolt along with associated hardware 4.
(Figure G ) into engine shaft. Tighten impeller bolt to
22 ft-lb (30 N·m).
Reinstall drain cover (Figure 5. H ) back onto pump casing.
Turn locking knobs clockwise to secure drain cover.
NEW STYLE IMPELLER REMOVAL
Using a 3/8 ratchet with a 12 mm socket remove the 1.
impeller bolt, lock washer and fl at washer from the
engine shaft. Retain these items.
Insert a M12 bolt (70 mm) into the engine shaft hole. 2.
Using a ratchet, tighten bolt.
Continue to turn the ratchet in a clockwise direction, 3.
notice as the bolt turns the impeller will begin to slide
off the engine shaft. Remove impeller.
REQUIRED TOOLS
3/8" Ratchet

12 MM Socket

Drill Motor

7/32-Inch Drill Bit

Chemsearch™ (Rust Lubricant)

1/4-Inch Tap
