Graco Inc 800-700, 800-699 Gear Reducer Service Model, Replacing the O-Ring, Replacing the Gasket

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GEAR REDUCER SERVICE (Model 1535)

WARNING

To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin or injury from moving parts, always follow the Pressure Relief Procedure Warning on page 2 before proceeding.

Replacing the O–Ring (5)

1. Remove the four bolts, lockwashers and washers. Pull the pump and gear reducer assembly of f the engine.

2.Drain the gear reducer oil by placing a container under it and removing the drain plug with a 22 mm wrench. Replace the o–ring (16) if damaged.

3.Remove the four screws and lockwashers with a

6 mm wrench and pull the gear case of f the gear cover.

4.Remove the old o–ring (5). Clean the gear cover and case surface. Lightly coat the new o–ring with grease and install it in the gear case.

5.Follow steps 4 through 6 under Assembling the Gear Reducer if this is all the service required.

Replacing the Gasket (1)

1.Follow steps 1 through 3 under Replacing the O–Ring.

2. Using a 4 mm wrench, remove retaining bolt, lockwasher, flat washer and pull the gear (4) off the pump with a gear puller.

3.Remove the four screws and lockwashers from the gear cover.

4.Remove the gear cover and gasket (1) from the pump. Clean the gear cover and pump surface. Lightly coat both sides of the gasket with grease and install it on the gear cover.

5.Follow the instructions under Assembling the Gear Reducer if this is all the service required.

Replacing the Oil Seal (10)

NOTE: The oil seal MUST be replaced if removed.

1.Follow steps 1 and 2 under Replacing the O–Ring.

2.Pry the oil seal out of the gear case. Be careful not to damage the gear case.

3.Wipe the inner surface of the gear case clean, then lightly coat it with grease. Place the oil seal into the gear case. Use a socket, placed against the surface of the seal, to push the seal into the case until its top surface is past the ridge in the bore.

4.Follow steps 4 through 6 under Assembling the Gear Reducer if this is all the service required.

Assembling the Gear Reducer

1.Make sure the gasket is properly placed on the gear cover. Refer to step 4 under Replacing the Gasket. Then, install the gear cover on the pump shaft.

2.Align the holes in the gear cover with the holes in the

pump. Apply low strength Loctite r (blue) on the screw threads and secure the cover with the four screws and lockwashers. T ighten them oppositely and evenly.

3.Align the gear’s slot with the key on the pump shaft and slide the gear onto the shaft, up to the pump’ s shoulder. Tighten the retaining bolt, lockwasher and flat washer to lock the gear on the shaft.

4.Make sure the o–ring is in place. Refer to step 4 under Replacing the O–Ring. Install the gear case on the cover, aligning the holes, and secure it with the

four screws and lockwashers. T

ighten them

oppositely and evenly.

 

5.Grease the engine shaft. Align the gear’s slot with the key on the engine shaft and slide the gear reducer onto the shaft, up to the engine’s shoulder.

6.Secure the gear reducer to the engine with the four bolts and lockwashers.

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Contents 1535 2040 2540 Rev a800-698, Series a 800-699, Series aIndex TermsGeneral Safety Pressure Relief ProcedureSpray Gun Safety Devices Moving Parts HazardHose Safety Equipment Misuse HazardFuel and Emission Hazards System PressureInstallation Set Up1535 Check for Shipping DamageStartup Installing and Changing Spray Tips Trigger Safety LatchFollow the Pressure Relief Procedure Maintenance Pressure Relief ProcedureSHUTDOWN, Flushing Storage Interval What to doTroubleshooting Chart ProblemHydra-Cleanr1535 Pressure Washer Parts DrawingParts List Part Description QTYHydra-Cleanr2040 Pressure Washer WASHER, Flat 3/8 804-249 Assembly incl 802-139 Hydra-Cleanr2540 Pressure Washer FILTER/STRAINER Gear Reducer Service Model Replacing the O-RingReplacing the Gasket Replacing the Oil SealGear Reducer Model BearingGear Reducer Service Models 2040 Replacing the Oil SealsGear Reducer Models 2040 Pump Assembly, 1500 psi Kit Repair Kit Description Qty 804-102 804-101Pump Assembly, 2000 psi Kit Repair Kit Description Qty 804-100 804-096Pump Assembly, 2500 psi Kit Repair Kit Description Qty 804-098 804-234 STUD, Retaining 6mm x 64,5mm804-097 Servicing the Valves Pump Service ModelServicing the Seals Reassembly Torque Chart Pump Part Thread Tool SizeServicing the Plungers Servicing Crankcase SectionPump Service Models 2040 308-530 ReassemblyServicing the Pumping Section Servicing the Seals and V-PackingsReassembly Packing ModelsHigh Pressure Seal Models Low Pressure Seal-All ModelsAccessories Downstream Chemical Injector KIT 800-117Technical Data ModelImportant Phone Numbers Graco WarrantyGraco INC. P.O. BOX 1441 MINNEAPOLIS, MN

800-700, 308-530, 800-698, 800-699 specifications

Graco Inc is a renowned manufacturer specializing in fluid handling systems used in a variety of applications, particularly in industries such as construction, automotive, and manufacturing. Among their extensive product lineup, models 800-699, 800-698, 308-530, and 800-700 stand out for their innovative features and advanced technologies.

The Graco 800-699 is a versatile air-operated double diaphragm pump designed for high efficiency and reliable performance. Its robust construction includes a corrosion-resistant housing ideal for handling tough fluids. The pump can effectively operate at various pressures, making it suitable for tasks ranging from transferring chemicals to applying coatings. With its easy maintenance design, operators can quickly access key components, minimizing downtime.

Model 800-698 shares similar attributes but is distinguished by its emphasis on portability and ergonomic design. This pump model is lightweight and features a compact form factor, allowing easier transport and setup for mobile applications. Its intuitive controls enable precise flow rate adjustments, giving operators enhanced control over their fluid-handling tasks. Additionally, it is designed for compatibility with a wide range of fluids, enhancing its versatility across different applications.

The 308-530 model is notable for its electric-driven technology. This feature makes it ideal for environments where compressed air is not available or where a quieter operation is required. The 308-530 is equipped with advanced control systems that optimize energy consumption without compromising performance. Moreover, its integrated safety features ensure reliable operation while protecting both the equipment and the operator.

Finally, the Graco 800-700 represents the pinnacle of efficiency in fluid transfer systems. This model utilizes state-of-the-art technology to provide faster flow rates and improved material compatibility. The 800-700 is engineered to handle a wide range of viscous materials, making it perfect for heavy-duty applications. The modular design allows for easy upgrades, ensuring users can keep pace with emerging technologies without extensive disruptions to their operations.

Collectively, these Graco models embody a commitment to quality, durability, and user-friendly design, allowing companies to streamline their processes and enhance productivity in fluid handling tasks. With ongoing advancements and a focus on customer satisfaction, Graco Inc continues to be a leader in this industry.
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