Operation and Service Manual for WYCO Hydraulic Paving Vibrators
.TABLE OF CO TE TS CHAPTER 1 - GE ERAL I FORMATIO .....................................................................................................................................1 a) Purpose of Vibration ..............................................................................................................................................................1 b) Vibrator Positioning and Spacing ........................................................................................................
Wyco Tool Company between 5,000 and 8,000 VPM. As with vibrator spacing, the optimum vibrator speed depends on many factors. These include, but are not limited to mix design, paver speed and vibrator spacing. Regardless of what optimum speed is required it is important to closely monitor vibrator speed to ensure a consistent quality and more uniformly consolidated pavement.
Wyco Tool Company is used to seal between the aluminum hydraulic motor housing and the output shaft. Controlling the oil flow through the motor can control the motor speed. CHAPTER 2 VIBRATOR DESIG FU DAME TALS a) Rotor The rotor is the component that generates vibration. A vibration impulse is generated every revolution. It is essentially a shaft with material removed from one side to create an unbalance. The greater the unbalance, the greater the centrifugal force that can be generated.
Wyco Tool Company The quick disconnects can be attached to each other when removed from the machine to prevent contamination. h) Protective Hoses and Plugs A rubber protective hose surrounds the hydraulic hoses leaving the vibrator, preventing wear due to concrete abrasion. This protective hose is attached to the vibrator with hose clamps. A rubber plug supports the hydraulic hoses where the hydraulic hoses leave the vibrator, preventing it from rubbing against metal.
Wyco Tool Company CHAPTER 3 I STALLATIO A D OPERATI G REQUIREME TS a) IT IS IMPORTA T TO MI IMIZE THE AMOU T OF HOSE CO ECTED TO THE RETUR LI E. EXCESSIVE AMOU TS OF RETUR HOSE WILL I CREASE BACK PRESSURE O THE HYDRAULIC MOTOR SEAL, CAUSI G PREMATURE HYDRAULIC MOTOR SEAL FAILURE. Mounting Vibrators See figure line art drawings for illustrations of item numbers listed in parenthesis. Angle bracket mounted vibrators are intended to be mounted on a round bar having an outside diameter of 2” to 2-7/8”.
Wyco Tool Company COULD CAUSE SERIOUS DAMAGE. WHE EXCESSIVE TEMPERATURES ARE E COU TERED, FOLLOW THE PAVER MA UFACTURI G RECOMME DATIO S TO REMEDY THE SITUATIO . the most. The rule then can be read giving the operating speed. Flow Rate The flow rate of the hydraulic oil through the vibrator directly affects the speed of the vibrator. When the flow is increased or decreased the vibrator speed increases or decreases, respectively.
Wyco Tool Company TROUBLE SHOOTI G CHART Trouble Possible Causes Solutions Vibrator not running 1) Required oil flow and pressure not supplied 1) Supply required oil flow and pressure 2) Failed bearings 2) Replace eccentric bearings per Chapter 4, Section c 3) Hydraulic motor locked up 3) Replace hydraulic motor per Chapter 4, Section e 1)Vibrator head full of oil 1) Replace hydraulic motor shaft seal per Chapter 4, Section d and bearings per Chapter 4, Section c 2) Required oil flow and pressu
FIGURE 1. *Male and female quick disconnects may be on either the pressure or return line. Always check that the smaller diameter hose is the pressure line.
A GLE HYDRAULIC VIBRATOR ASSEMBLY - 949-170 FIGURE 1. *Male and female quick disconnects may be on either the pressure or return line. Always check that the smaller diameter hose is the pressure line.
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HYDRAULIC VIBRATOR ASSEMBLY PARTS LIST PART UMBER ITEM QTY U/M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 1 1 1 4 2 1 1 1 1 1 3 3 1 1 1 1 1 2 4 4 1 1 2 1 1 4 1 1 1 1 6 3 1 1 EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA FT EA EA EA EA FT EA EA EA DESCRIPTIO SQUARE Head Housing with Lower Bearing Cup Hex Nut Washer Bearing Shim Rotor Upper Bearing Cup, Slotted Spacer Driver Sleeve Driver Socket Head Cap Screw (No.
Wyco Tool Company CHAPTER 4 SERVICE A D ASSEMBLY I STRUCTIO S a) Maintenance interval It is recommended that Wyco vibrators be maintained at regular intervals. The recommended maintenance interval for vibrators operated between 8,000 VPM and 10,800 VPM is 600 hours. The recommended maintenance interval for vibrators operated under 8,000 VPM is 1,200 hours. These instructions should be followed for preventative maintenance, which includes bearing and hydraulic motor seal replacement.
Wyco Tool Company 3) Rotor Disassembly Clamp the rib of rotor (6) in a vise. Unscrew the driver sleeve (9) (left hand thread). Remove the spacer (8) from the rotor. Remove the upper bearing cup assembly from the rotor assembly. Press the bearings (4) and shim (5) out of upper bearing cup (7). Unscrew the hex nut (2) from the opposite end of the rotor (left hand thread). Remove washer (3), the remaining two bearings and .005 inch thick shim. 5) Bearing replacement Clamp the rib of the rotor (6) in a vise.
Wyco Tool Company Slide another bearing onto the rotor with the writing on the outer race facing away from the rotor and the other bearing. Install the upper bearing cup (7) over the bearings on the driver sleeve (9) end of the rotor assembly. Slide a washer (3) onto the rotor. Note that the washer is thinner than the spacer (8) used on the other end of the rotor. Securely tighten hex nut (2) on the end of the rotor (left hand thread). Repeat the bearing/shim/bearing assembly on the opposite end.
Wyco Tool Company Once the rotor is engaged to the motor housing, slide the head housing over the rotor and begin to engage the threads. Clamp the bracket in the pipe clamps of a vise and tighten the head housing. d) Hydraulic Motor Seal Replacement The Wyco hydraulic motor will provide thousands of hours of life under normal service conditions.
Wyco Tool Company Seals . 2) Seal Replacement 1) Seal Removal It may be possible to remove the hydraulic motor seal assembly without removing the hydraulic motor from the vibrator assembly. This procedure is described below. In the event that it doesn't work, proceed to Section e. Place a tapered guide over the hydraulic motor (14) shaft (Wyco tool part # 419754). Assembly without the tapered guide could tear the seal lip and cause leakage.
Wyco Tool Company e) Hose, Hydraulic Motor and Alternate Hydraulic Motor Seal Removal ote: The hydraulic hoses need to turn with the motor housing inside the angle bracket while unthreading. 1) Protective hose removal Unscrew the hydraulic hoses attached to the motor and install temporary ¼ NPT and 3/8 NPT plugs to prevent dirt from entering hydraulic motor. 2) Loosen or remove the hose clamp (29) from the end of the protective hose (27). Remove the rubber plug (30) from the end of the protective hose.
Wyco Tool Company motor between the jaws of a large crescent or pipe wrench and rotate the motor in either direction to break the silicone sealant that was applied to the motor to housing interface. Clean all sealant residue from the parts. 4) Alternate Seal Replacement Repeat the process described in Section d with the hydraulic motor removed from the motor housing (13). Replace the seal as described in Section d. If the seal does not come out, repeat the process using a hydraulic hand pump.
Wyco Tool Company Install the rubber plug (30) around the hydraulic hoses at the opposite end of the protective hose and tap in until it is flush with the end. Install the protective hose (27) completely onto the hose barb of the angle bracket. Position the Punch Lock Clamp (26) over the protective hose about ¼ inch apart over the hose barb section. Install one hose clamp (29) directly over the rubber plug at the end of protective hose (27) and tighten.
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Wyco Tool Company 8635 Washington Avenue Racine, WI 53406 T: (262) 639-6770 or (800) 233-9926 F: (262) 639-2023 or (888) 992-6872 E-mail: wycosales@wycotool.com 23 Form #W110 Printed in U.S.A.
