Hobart H600 P660 L800 Bowl Lock Installation guide

Brand: Hobart

Model: H600 P660 L800 Bowl Lock

Type: Installation guide

F-18971 H600/P660/L800 Bowl Lock Kit

Form 18971 (2/94) © HOBART CORPORATION 1994

KIT NO. 438578 (U.S.A.)

INSTALLATION INSTRUCTIONS FOR MODELS

H600/P660/L800 BOWL LOCK KIT

No updates are required prior to installing this kit on a Model P660 Mixer. For

H600/L800 units consult TSB-895 to determine updates that may be required

prior to installing this kit.

This kit adds a bowl lock feature designed to lock the bowl support in place, while

the mixer is running.

NOTE: Mixers with a power bowl lift do not require a bowl lock kit. Do Not attempt

to install the bowl lock kit.

Special Tool Required •Suggested crimping tool, T & B No. WT-111-M or Amp No. 47386.

•3⁄8" variable speed drill.

•1⁄2" drill bit.

Parts Information The Bowl Lock Kit 438578 includes the following parts:

Bowl Lock Assembly

PART NO. DESCRIPTION QUANTITY

120100 Vibration Mount Nut 3

SC-037-87 Cap Screw 1⁄4-20 x 1" 3

87711-183-4 Push Button Switch 1

F-18874 Supplemental Wiring Diagram 1

F-18971 Installation Instructions 1

87532-234 Lead Wire Assembly (JPR-JPR) 2

87532-235 Lead Wire Assembly (2-3) 1

65890-19 Ring Terminal 1

F-18974 Mounting Hole Template 1

PL-40140

F-18971 H600/P660/L800 Bowl Lock Kit

Installation Instructions

WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT

THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING

THE CIRCUIT IS BEING SERVICED.

1. Remove top cover.

2. Install three vibration mount nuts in holes of pedestal gusset.

A. If holes are not present in the gusset, do the following:

(1) Remove motor.

(2) Position the template and drill three 1⁄2" holes as explained on the

template.

(3) Install three mount nuts in holes.

(4) Install bowl lock assembly using three screws.

(5) Manually energize solenoid, checking that the lever will engage

between two teeth on bowl lift screw gear. Verify the lever is clear

of the gear when the solenoid is released.

(6) Reinstall motor.

3. Install bowl lock assembly using three screws.

A. P660 single phase unit may require removal of the motor to install the

bowl lock assembly.

PL-40141

Continue Installation Instructions

F-18971 H600/P660/L800 Bowl Lock Kit

Continue Installation Instructions

Installation Instructions Continued

4. The lock solenoid is a dual voltage solenoid and should be wired to match

the motor contactor coil voltage. Attach the appropriate jumpers to the lock

solenoid coil.

5. Determine the form number of the wiring diagram present on the mixer.

A. Read F-18874 and determine which supplemental wiring diagram

matches the wiring diagram form number on mixer.

B. Peel off the proper supplemental wiring diagram and place next to the

original wiring diagram.

6A. On units that have a contactor and separate overload relay, connect solenoid

wire marked 1FB-P2 to fuse board (unit with transformer) or to CON-L2 (unit

without transformer).

B. On units that have a combination starter and overload (Arrow Hart)

remove terminal from wire 1FB-P2 and strip back 1⁄4".

(1) Crimp ring terminal on wire and install at C9 on contactor.

7. Route solenoid wire marked 2PB-NC to the hole at the top of the right hand

side of transmission case (facing attachment hub) passing it through the

existing P clamps.

A. Push the wire through hole into the switch cavity.

8. Free the switch plate assembly from transmission case.

9. Find new solenoid wire marked 2PB-NC in switch cavity and connect to N.C.

contact on new start switch from kit.

A. Disconnect wire(s) marked 2PB-NO from old start switch and connect

to COM. contact on the new start switch.

B. Disconnect wire(s) marked 2PB-C from old start switch and connect to

N.O. contact on the new start switch.

Visual check: Wire from “STOP” switch should go to N.O. contact on new start

switch.

10. Remove start switch boot and old start switch, discard start switch.

11. Install new start switch and switch boot.

12. Reinstall switch plate assembly.

NOTE: Secure the solenoid wires away from any moving parts.

PL-40145-1

F-18971 H600/P660/L800 Bowl Lock Kit

Continue Installation Instructions

Installation Instructions Continued

13. Power unit.

14. Check for proper operation of bowl lock feature and mixer.

A. When start button is held in, the lever on bowl lock solenoid should

clear the bowl lift screw gear.

B. When start button is released and the mixer is running, the lever on

bowl lock solenoid should be held between two teeth on bowl lift screw

gear.

C. When stop button is pushed, electrical power is removed from the

solenoid coil.

15. Reinstall top cover.

16. Instruct operator that if they want to raise bowl support while mixer is running,

the start button must be held in. Also, it may be necessary to slightly rotate

the handwheel in the bowl up direction to mechanically disengage the bowl

lock mechanism before lowering the bowl.

Hobart H600 P660 L800 Bowl Lock Installation guide

Hobart H600 P660 L800 Bowl Lock Installation guide

Hobart H600 P660 L800 Bowl Lock Installation guide

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