Graco 406828B User Manual
GENUINE GRACO PARTS AND ACCESSORIES
Remote Air Valve
Repair Kit 24D044
Husky® 1050 Diaphragm Pumps
Important Safety Instructions
Read all warnings and instructions in the
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Husky
Repair/Parts manual. Save all instructions.
1050 Air-Operated Diaphragm Pump
406828B
EN
Ref. Description Qty.
202 PISTON 1
203 DETENT PISTON ASSEMBLY 1
204 CAM, detent 1
205 PLATE, air valve 1
206 O-RING 2
208 U-CUP 2
209 SCREW
M3, shorter (for metal pumps)
#4, longer (for plastic pumps)
3
205
212
3
1
214
213
2
Ref. Description Qty.
211 DETENT SPRING 1
212 BASE, cup 1
213 CUP 1
214 O-RING, cup 1
108 GASKET, air valve (not shown) 1
--- GREASE, lithium-based (not shown) 1
See reverse for assembly directions.
209
211
203
1
204
1
1
208
2
1
206
Apply lithium-based grease.
1
U-cup lips must face piston.
2
Apply lithium-based grease to
3
contact surface.
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
406828 Revision B - December 2012
Copyright 2009, Graco Inc. is registered to ISO 9001
housing
202
1
1
206
2
1
ti18205b
208
Assembly
NOTE: Apply lithium-based grease whenever instructed
to grease.
1. Use all parts in the repair kits, as applicable to your
pump. Clean other parts and inspect for damage.
Replace as needed.
2. Grease the detent cam (204) and install into
housing.
3. Grease the u-cups (208) and install on the piston
with lips facing toward the center of the piston.
4. Grease both ends of the piston (202) and install it in
the housing, with the flat side toward the cup (213).
Be careful not to tear u-cups (208) when sliding piston into housing.
5. Grease new o-rings (206) and install on the end
caps. Install the end caps into the housing.
6. Install a retaining ring on each end to hold end caps
in place.
7. Grease and install the detent assembly (203) into
the piston. Install the o-ring (214) on the cup (213).
Apply a light film of grease to the outside surface of
the o-ring and the inside mating surface of the base
(212). Install the cup (213) on the base (212). Install
the spring (211) onto protrusion on the cup. Install
the cup assembly. Align the small round magnet in
the base with the air inlet.
8. Grease the cup side and install the valve plate
(205). Align the small hole in the plate with the air
inlet. Tighten the screws (209) to hold it in place.
2 406828B
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