Backpack Sprayer Use and Care Manual Model MS-53BPE 5G/ 20L WARNING Carefully Read These Instructions Before Use 013566 R0314
WARNING WARNING: Improper use or failure to follow instructions can result in explosive failure causing serious eye or other injury. For safe use of this product you must read and follow all instructions. Do not leave a pressurized sprayer in the hot sun. Heat can cause pressure build-up resulting in possible explosion. Do not store or leave solution in tank after use. Always wear goggles, gloves, long sleeve shirt, long pants and full foot protection when spraying.
APPLICATIONS & USE FOR YOUR SPRAYER Avoid using a sprayer for general cleaning purposes if plant protection or herbicide chemicals have already been used in the sprayer. If a sprayer has been used for plant protection or as an herbicide, clean the sprayer completely (see cleaning section) before using. Plant Food: Use different spray patterns for optimum foliage feeding or for fungicide and pesticide application.
SPRAYER COMPONENTS & USE INFORMATION, Continued WAND ASSEMBLY 1. Make sure the o-ring is installed on the end of the wand. Insert the wand into shut-off valve. 2. Turn and tighten the retaining nut clock-wise onto the shut-off valve. Retaining Nut Wand O-ring Shut-off Valve INSTALLING THE PUMP HANDLE The sprayer includes all hardware necessary for installing the pump handle. Install the pump handle into the base (A). Center the hole in the handle between the cut-out on the bottom of the tank base (B).
SPRAYER COMPONENTS & USE INFORMATION, Continued INSTALLING THE SHOULDER STRAP The backpack strap is provided with multiple features including shoulder strap and waist strap (figure 1). The top of the shoulder strap is attached to the top of the tank and is removable. The strap attaches to the base of the sprayer by sliding the buttons into the slots until they snap into place (Figure 2).
SPRAYER COMPONENTS & USE INFORMATION, Continued HELPFUL SPRAYING INFORMATION Use RAPID pump strokes to prime the pump. You will know the pressure chamber is filling with liquid when you feel firm resistance from the pump handle. The air in the pressure chamber is compressed from repeated strokes. By pressing the hand lever on the shut-off, the valve opens. For safety lock-off feature (no-spraying), pull up on handle and move red locking mechanism into lock-off position as shown in fig. 1.
STORING / MAINTAINING YOUR SPRAYER • The sprayer should be stored out of direct sunlight in a cool dry space. • Before freezing weather make sure to drain all liquid in the tank, pump, pressure cylinder, hose, shut-off valve, wand and nozzle, to avoid liquid expansion and cracking in the sprayer components (See “Cleaning” section). Lock the shut-off valve in the “open” position. • When service is required call your nearest dealer and always insist on original manufactured replacement parts.
PUMP DISASSEMBLY AND REBUILD Agitator Bar 1) Insure the tank and pressure chamber contents are emptied and pressure has been released in the pressure chamber. To release pressure in the pressure chamber activate shut-off valve and release all pressure. Figure 1 2) Reach into tank fill opening and remove agitator bar from pressure chamber body (Figure 1). Boot Retainer Nut Ball Figure 2 3) Disconnect linkage arm from the top of the pump assembly (see section covering Installing The Pump Handle).
Felt Washer Gasket Figure 6 Pump Locking Ring Pressure Chamber Housing Gasket and Felt Washer Slide both the gasket and felt washer off the pressure chamber body (Figure 6). Replace felt washer first taking care not to fold over washer as it is worked up the pump chamber and into the pump locking ring (figure 7). The felt washer is pre-lubricated to provide lubrication between the pressure chamber housing and pressure chamber housing gasket.
5) Remove the three bolts attaching the piston cylinder to the bottom of the tank (Figure 4). 6) Reach in through the tank fill opening and remove the piston cylinder. Figure 4 7) Remove check valve cartridge assembly from bottom of piston cylinder utilizing pump handle clip (clip has flat blade incorporated into end). Place flat blade into slot in bottom of cartridge and unscrew (Figure 5 and 6). 8) Once cartridge has been removed it can either be replaced as an assembly or rebuilt.
DISASSEMBLING AND REPAIRING THE SHUT OFF VALVE 1) Assembled shut-off valve (Figure 1). Figure 1 2) Remove the retaining pin (A) (Figure 2) place the notched end of the retaining pin on a hard surface and push down. Remove the retaining pin and slide the handle off the valve. A Figure 2 Valve Stem B C 3) Remove the retaining nut (o-ring attached), spring, and valve stem (B) (Figure 3). Replace worn parts. Lubricate the O-rings and reassemble by reversing the steps above.
REPLACEMENT PARTS ORDER INFORMATION 569019 Link Arm Assembly 569026 Pump Handle w/clip O-ring Wand Screw Cap 99944100480 Wand Assembly Hose Washer 99944100479 Hose Assembly Retaining Nut Hose 99944100477 Shut-off Valve Repair Kit 99944100478 Shut-off Assembly 11E
REPLACEMENT PARTS ORDER INFORMATION 569021 Pump Seal Kit 569024 Piston Cylinder Kit 569028 Pressure Chamber Housing 569023 Valve cartridge kit 569020 O-ring kit 569002 Filter Basket & Cap 99944100472 Straps
MS-53BPE MSP10000001 - MS-53BPE MSP99999999