Each model is different.
Usually, 2 screws that hold the housing with the beater-batter just pressed right into a groove. Press and remove. It varies though.
Just look at the assembly and you can figure this out. Nothing complicated. The beater bar is meant as a replaceable item. And, so is the brush. While you are at it, replace the brush too.

Check the bulb. If it had given you a few years of service, it is good to replace that too. Brush off and clean every path in the vacuum line thoroughly.

Your vacuum will then be good as new.

MINTY KENMORE POWER MATE JR POWER NOZZLE 6" HEAD $24.99

Rainbow Mate RM-2E Power Brush Vac Attachment~E-Series $14.99

POWER MATE POWER SUPPLY 29/30VDC @ 1A M/N P908 N220 $39.99

Power Mate BPA-20E $35.00

FANUC A06B-8000-0490 02A POWER MATE PROGAMMER $340.00

Used Kenmore Power Mate Floor Nozzle Head 116.5418180 $34.95

Rainbow R1650 Power Nozzle Vacuum & Aqua Mate $89.99

GE Fanuc A02B-0166-B001 POWER MATE MODELD $1,999.00

Power Mate Power Supply ETA-12/15C #16211-12 $86.00

Fanuc Power Mate Interface A02B-0118-B005 OBSOLETE Used $595.00

GE Fanuc A02B-0166-B531 POWER MATE MODEL D $750.00

Solar Power charger for i-mate Ultimate 9502 $11.98

KENMORE POWER MATE JUNIOR STEP HEAD VACUUM CLEANER $12.99

PMC POWER MATE EB24F POWER SUPPLY EB-24F IBM# 1010080 $99.99

Oregon 30384X Power Mate Sprocket Stihl 028 Super $22.99

Opti-Mate Power Supply OM-PS400 5V DC *NEW* #16548 $6.99

POWER MATE EMA-12/15A USPP EMA1215A $192.50

Cell phone Mate 65dB Wireless 800MHz Power Repeater Amp $311.00

Cellphone Mate 65dB 900MHz Power Repeater CM900 Europe $477.00

70dB Cellphone Mate 800MHz Power Repeater Amplifier New $688.00

FANUC A02B-0166-B531 POWER MATE MODEL D ~ Used $832.00

NEW Kenmore Pet Power Mate Jr Powermate Hand Vacuum 116 $24.99

Econo/Mate Dual 5VDC DC Power Supply ETA-5D $35.00

PMC Power/Mate Corp. Regulated POWER SUPPLY USED SALE $27.93

RTE POWER/MATE EMA-18/24D-V POWER SUPPLY $24.99

Power Mate BPA-40C Regulated Power Supply 0-40V, .75A $69.99

POWER/MATE CORP. ETA 12/15C $398.00

POWER/MATE CORP. PXS-AB-36-OV $398.00

POWER/MATE CORP. SUUNI-30A-BV $498.00

POWER/MATE CORP. PXS-AB-24V $398.00

POWER/MATE CORP. PT-15B $398.00

Power Mate Corporation Power Supply Model FPS-12-5-P195 $44.95

KENMORE POWER-MATE JUNIOR VAC HEAD MODEL 116 $9.99

Power Mate SU-UNI-30CV Regulated Variable Power Supply $37.50

Power Mate SU-UNI-30DV Regulated Variable Power Supply $47.50

NEW KENMORE POWER-MATE FOR MODEL 116.25614 & 116-25615 $36.35

16mm TV Commercial Paper Mate Power Point Pen $6.95

Power Mate Jr Kenmore 116.C85PBPK1V022 Upholstery Stair $4.99

Power Mate Jr Kenmore 116.C85PAUX0VU06 Upholstery Stair $2.99

KENMORE POWER MATE JUNIOR ATTACHMENT $15.99

KENMORE POWER MATE JUNIOR ATTACHMENT $13.99

Power/Mate (PMC) WFAA12 Regulated Power Supply $24.99

Power Mate EMA-18/24B Component Rectifier P/S NNB $71.50

Fanuc Chassis Power Mate Model E A02B-0168-B011 Nice !! $100.00

Kenmore Power-Mate Junior still in packaging nvr opened $0.99

VINTAGE SHARP ELSI MATE EL 376L TWIN POWER CALCULATOR $2.49

KENMORE Vacuum POWER-MATE JUNIOR Part MODEL 116 $6.99

KENMORE Vacuum POWER-MATE MODEL 116 $19.99

KENMORE Vacuum POWER-MATE MODEL 116 ATTACHMENTS $9.99

Creative Memories New File Mate and power layout guides $9.99

Power 101 Mini Camping Burner by Oz-mate BRAND NEW! $33.49

KENMORE Vacuum POWER-MATE MODEL 116 3-Prong HOSE $20.49

(13) RTEPOWER/MATE RTE MD-15N MINIATURE POWER SUPPLY $149.95

RAINBOW D4C SE CANISTER VACUUM + Power Nozzle/Aqua-Mate $99.99

GE Fanuc A02B-0118-B002 POWER MATE $1,599.00

Solar Mate 3 £239.95 Solar Mate is a lighting kit in a box! Where mains quality lighting is needed in remote locations, such as workshops, stables, summer houses, garden offices, garages, sheds etc Solar Mate is the answer. Catalogue Description: Solar Mate addresses the problem of illuminating remote areas where no mains power exists. Exempt from Part P of the Building regulations, Solar Mate can be easily and safel...

Solar Mate 1 £80.00 Solar Mate is a lighting kit in a box! Where mains quality lighting is needed in remote locations, such as workshops, stables, summer houses, garden offices, garages, sheds etc Solar Mate is the answer. Catalogue Description: Solar Mate addresses the problem of illuminating remote areas where no mains power exists. Exempt from Part P of the Building regulations, Solar Mate can be easily and safel...

Solar Mate 2 £129.95 Brief Description: Solar Mate is a lighting kit in a box! Where mains quality lighting is needed in remote locations, such as workshops, stables, summer houses, garden offices, garages, sheds etc Solar Mate is the answer. Catalogue Description: Solar Mate addresses the problem of illuminating remote areas where no mains power exists. Exempt from Part P of the Building regulations, Solar Mate can ...

Soulmate Secret: Manifest the Love of Your Life with the Law of Attraction £6.98 As someone who didn't meet her soulmate until the age of 44, Arielle Ford became somewhat of a heroine for single women in their 40's and 50's. She began to get so many questions of how she 'manifested' her husband that she decided to share her secrets. This book shows readers how to take control of their romantic destiny....

Mates, Dates and Pulling Power: Bk. 7 (Mates Dates) £0.01 ...