Sherwood 22000 Series Quick start guide

The Original Engine Cooling Pump Since 1921
www.sherwoodpumps.com
22000/30000 Pump Series Technical Guide
Identification
G2201 and G22011 G22012, G22012X, G3001-01, G3001-02,
G3001X
Note:
1. 22000 Impeller uses a 30-degree spline. (14 Teeth)
2. 30000 Impeller uses a 45-degree spline. (10 Teeth)
3. The pump model is stamped on the cover. The impeller number is molded into the
impeller end, toward the mechanical seal.

2
Assembly / Disassembly Instructions
The following assembly/disassembly procedures apply to all G22000/G3000 Series pumps. Pump numbers can be
found stamped into the cover plate of the pump.
Disassembly
A. Removethe bolts (1) and lockwashers (2) from the cover (3).
B. Removethe cover and quad ring (4). Note the direction of the impeller blades to ensure proper replacement of
the impeller during the assembly procedure. The impeller (5) can be removed with impeller puller 23631 or a
3/4”- 16 bolt (by screwing the bolt into the threaded impeller, the impeller is jacked out of the pump).
Caution: The pin (8) might fall out from its place when removing the cam.
C. The cam or cam halves (6), cam anti-rotation pin, and wearplate (7) can be removed.
D. Using external snap ring pliers, remove the retaining ring (9) from the shaft.
E. Slide the mechanical seal (10) off of the shaft.
F
.Remove the bolts (11) and lockwashers holding the body (12) to the housing (13).
G. Slide the housing off of the shaft and body assembly.
H. Press the seal seat (14) out of the housing.
I. When applicable, remove the drive gear assembly: while supporting the drive gear (15), remove the bolt (16),
lockwasher (17) and thrust washer (18) from the shaft. Pull the gear off of the tapered shaft using a bearing
or wheel puller.
J.Using internal snap ring pliers, remove the retaining ring (19) from the body. For the G22012-01, G22012X,
G3001-01, G3001-02 and G3001X, removethe bearing shield (20) from the body.
K. Press the bearing and shaft assembly (21) out of the body.
L. Remove the lip seal (22) from the body.
M. Inspect the shaft for grooving of the lip seal area and heavy fretting of the spline portion that drives the impeller.
Inspect the bearings for loss of grease, corrosion and rough rotation. If the shaft or bearings exhibit such a wear,
replace the entire shaft and bearing assembly (21) listed on page 3.
Warning: Do not try to build the shaft and bearing assembly from the individual parts, but instead purchase the
entire shaft and bearing assembly listed on page 3. Due to tight tolerances, special assembly procedures for this
assembly must be followed to prevent galling of the shaft in the lip seal area.
13
8
10/14
16
11 12 22
21 20 19 23
17 18
15
9
43
6
5
7
2
1

3
Assembly / Disassembly Instructions (continued)
Assembly
A. The lip seal (22) should be pressed in the body (12) with the metal backing ring of the lip seal toward the
housing (13) and away from the engine.
Caution: For the G22012-01, G22012X, G3001-01, G3001-02 and G3001X,
when pressing the lip seal in the body from the impeller end, the lip seal
should be pressed 0.065” plus/minus 0.010” past the furthest bearing
location. See detailed illustration. This position is critical to the perform-
ance of the oil seal since it needs to be placed slightly further than the
bearing, but not as far as the beginning of the taper. Failure to place the
seal at this location will cause the lip seal to contact the tapered portion
of the shaft which will cause premature lip seal wear. Care should also be
taken to ensure proper alignment of the lip seal to the pump body and
that the lip seal is uniformly pressed to prevent distortion.
B. Press the shaft and bearing assembly (21) into the pump body.
For the G22012-01, G22012X, G3001-01, G3001-02 and G3001X,
ensure that the lip seal will not wear on the tapered portion of the
shaft (see Caution above). Replace the slinger (23) on the shaft
between the mechanical seal position and the bearings.
C. For the G22012-01, G22012X, G3001-01, G3001-02, G3001X, slide
the bearing shield (20) into the pump body and against the inner bearing.
D. Using internal snap ring pliers, install the retaining ring (19) into the body.
E. Press the mechanical seal seat (14) into the housing (13) with the gray silicon carbide face toward the impeller.
Lubricate the outside of the seat boot with a water soluble lubricant or soapy water for easier assembly. Oil or
grease must not be used as it will prevent the rubber cup assembly from properly gripping the housing. The seat
should be inspected to ensure that the cup did not become partially dislodged during the assembly procedure.
F. Slide the housing over the shaft and body assembly. Fasten the four bolts (11) and lockwashers, and torque
them to 12-16 ft-lbs.
G. Replace the drive gear assembly. Slide the gear (15) on the shaft. Place the thrust washer (18) on the gear and
against the shaft. Place the lockwasher (17) on the bolt (16), and then apply Loctite #262 or equivalent to the
bolt. Fasten the bolt to the shaft and torque it to 36 ft-lbs.
H. Lubricate the internal rubber portion of the mechanical seal (10) with a water soluble lubricant or soapy water
and slide the seal onto the shaft with the silicon carbide portion of the mechanical seal toward the seal seat. Oil
or grease must not be used as it will prevent the mechanical seal from properly gripping the shaft.
I. Using external snap ring pliers, replace the retaining ring (9) on the shaft.
J. Install the pin (8) into the housing.
K. Install the wear plate (7) with the hole in the plate aligned with the pin in the housing.
L. Place the cam (6) in the housing. For the plastic cam halves, create the cam assembly by connecting the cam
halves (6) together. Align the hole in the cam with the pin in the housing and ensure the anti-rotation pin is in
place after the cam is fully installed.
M. Insert the impeller (5) in the housing using a twisting motion. Ensure that the impeller blades are bent in the
same direction as upon removal (counterclockwise when viewed from the cover). For ease of installation, apply
asilicon lubricant to the impeller.
Caution: DO NOTUSE A PETROLEUM-BASED LUBRICANT (petroleum product will cause damage to the
impeller).
N. Insertthe quad ring (4) into the groove,install the cover (3) on the housing, and then fasten the lockwashers (2)
and bolts (1). Torque the cover bolts to 5-8 ft-lbs.
O. After installation, inspect the seal, body, housing and cover for leaks.
Close-up Drawing of Lip Seal Area

4
Assembly / Disassembly Instructions (continued)
Sherwood # G2201 G22011-01 G22012-01 G22012X G3001-01 G3001-02 G3001X
Item QTY
1 Cap Screw 5 19626 19626 19626 19626 19626 19626 19626
2 Lockwasher 9 15944 15944 15944 15944 15944 15944 15944
3 Cover Plate 1 23113 23113 23113 23113 23113 23113 23113
4 Quad Ring 1 23111 23111 23111 23111 23111 23111 23111
5 Impeller 1 22000 22000 22000 22000 30000 30000 30000
6 Cam/Cam Half 1/2 24160 24160 24160 24160 24160 24160 24160
7 Wear Plate 1 23112 23112 23112 23112 23112 23112 23112
8 Pin 1 21566 21566 21566 21566 21566 21566 21566
9 Retaining Ring 1 23115 23115 23115 23115 23115 23115 23115
10/14 Mechanical Seal Assy. 1 23087 23906 23906 23906 23906 23906 23906
11 Bolt 4 23211 23211 23211 23211 23211 23211 23211
12 Body 1 23056 23056 23919 23919 23919 23919 23919
13 Housing 1 23057 24299 24159 24159 24159 24159 24159
15 Gear 1 23181 23181 23181 23181 23181 23181 23181
16 Bolt 1 23194 23194 23194 23194 23194 23194 23194
17 Lockwasher 1 23196 23196 23196 23196 23196 23196 23196
18 Thrust Washer 1 23195 23195 23195 23195 23195 23195 23195
19 Retaining Ring 1 23091 23091 23091 23091 23091 23091 23091
20 Bearing Shield 1 23922 23922 23922 23922 23922
21 Bearing and Shaft Assy. 1 24464 24464 24464 24464 25153 25153 25153
22 Lip Seal 1 23088 23088 23088 23088 23088 23088 23088
23 Slinger 1 23924 23924 23924 23924 23924
Minor Repair Kit 24870 24870 24870 24870 25017 25017 25017
Major Repair Kit 24872 24872 24872 24872 25154 25154 25154

5
Preventative Maintenance
The #1 reason for premature engine wear is overheating. To maintain engine performance,
insist upon genuine Sherwood impellers and service kits.
Pleasure Boating Commercial/Fishing Use
(Low Hours) (High Hours)
Schedule Light Duty Severe Duty Heavy Duty Severe Duty
(High RPM, Silt or Sand) (High RPM, Silt or Sand)
Impeller Kit Every year 6 months 6 months 3 months
Minor Kit 2 years Every year Every year 6 months
Major Kit 4 years 2 years 2 years Every year
Maintenance
Impeller Kit
22000K
Impeller Kit
30000K
Minor Kit
24870
Minor Kit
25017
Major Kit
24872
Major Kit
25154
1-22000-SHW Impeller 1-30000-SHW Impeller 1-22000-SHW Impeller 1-21566-SHW Pin 1-22000-SHW Impeller 1-21566-SHW Pin
1-21566-SHW Pin 1-21566-SHW Pin 1-21566-SHW Pin 1-23111-SHW Quad Ring 1-21566-SHW Pin 1-23088-SHW Lip Seal
1-23111-SHW Quad Ring 1-23111-SHW Quad Ring 1-23111-SHW Quad Ring 1-23112-SHW Wear Plate 1-23088-SHW Lip Seal 1-23091-SHW Snap Ring
1-23115-SHW Snap Ring 1-23113-SHW Cover Plate 1-23091-SHW Snap Ring 1-23111-SHW Quad ring
1-23906-SHW Mechanical Seal 1-23115-SHW Snap Ring 1-23111-SHW Quad Ring 1-23112-SHW Wear Plate
1-24160-SHW Cam Liner 1-23112-SHW Wear Plate 1-23113-SHW Cover Plate
1-30000-SHW Impeller 1-23113-SHW Cover Plate 1-23194-SHW Bolt
1-23115-SHW Snap Ring 1-23195-SHW Washer
1-23194-SHW Bolt 1-23196-SHW Washer
1-23196-SHW Lock Washer 1-23922-SHW Bearing Sheild
1-23195-SHW Thrust Washer 1-23924-SHW Slinger
1-23906-SHW Mechanical Seal 1-30000-SHW Impeller
1-23922-SHW Bearing Shield 1-23906-SHW Mechanical Seal
1-24160-SHW Cam 2-25072-SHW Cam Half
G2201 X X X
G22011-01 X X X
G22012-01 X X X
G22012X X X X
G3001-01 X XX
G3001-02 X X X
G3001X X XX

6
Inspection
Genuine Sherwood Tech Tips
To maintain best engine performance and to prolong engine life - replace your impeller annually*. Three tips to help
you install your new impeller:
• Use a non-petroleum based lubricant (silicon or soapy water) to help slide the impeller into the housing.
• Install the impeller with a twisting motion onto the shaft. Never force an impeller onto the shaft.
The impeller must be able to move freely on the shaft to properly prime and function.
• Use a small amount of non-petroleum based lubricant to help hold the o-ring when replacing the cover.
Proper storage of the impellers during a prolonged lay-up can help maintain the life of the impeller. Remove the
impeller from the housing and store in a cool, dark place. This will avoid the following:
•Copper bonding of the impeller to the housing
• Vanes “setting” into position as stored in the housing
• Ultraviolet deterioration
*See Maintenance Schedule on page 5
The #1 reason for premature engine wear is overheating.
To maintain engine performance, insist upon genuine Sherwood impellers and service kits.
Recommended inspection to be performed at any service interval:
Impeller . . . . . . . . . . Inspect for cracks or tears. Also, inspect for excessive abrasion of vane ends.
Replace annually or if any of the conditions exist, as in the picture below.*
Wear Plate . . . . . . . . Inspect for wear, flatness and pin for fatigue. Replace at major pump rebuild or if wear is
evident to maintain pump flow and suction performance.
Cam . . . . . . . . . . . . . Replace at major pump rebuild or if pitting/wear is evident.
Cover . . . . . . . . . . . . Replace at major pump rebuild or if wear exists to
maintain pump flow and suction performance.
Mechanical Seal . . . Replace at minor and major pump rebuild or
if leaking.
Lip Seal . . . . . . . . . . Replace at major pump rebuild or if leaking.
Shaft . . . . . . . . . . . . . Inspect for wear in area of lip seal and rubber
impeller. Grooving of lip seal area or heavy
fretting of the impeller end shaft will require
shaft/bearing assembly replacement.
Bearing . . . . . . . . . . . Inspect for loss of grease, corrosion or rough
rotation. Replace the entire shaft and bearing
assembly if these conditions exist or if the bearing
integrity is in doubt.
Bead worn
to flat
Pitting
Tear
Cavitation
Bowed (set)
Ripped
Vane

7
Notes

Form L-3057
11/10 Rev. B
SPECIALTY/OEM GROUP
375 FifthAvenueNW •New Brighton, MN 55112
Phone: [phone] •800-471-0460 •Fax:[phone]
www.sherwoodpumps.com