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1. MAINTAINING AND CHECKING THE MECHANISM
1-1. REGULAR CHECKS AND
MAINTENANCE ITEMS
To obtain full function and maximum performance from
the set, and to stop it getting dirty or scratched, we
recommend that you carry out the following mainte-
nance procedures and regular checks. The maintenance
checks described in the following section should also be
carried out without fail after carrying out any repairs to
the set.
1-1-1. REGULAR CHECKS
Hours of use (H)
Part maintained
Band brake assembly
BT lever assembly
Full erase head
Cleaner roller assembly
Guide roller assembly
S incline mounting assembly
Tape path
T incline mounting assembly
ACE head
system
Pinch roller lever assembly
Pinch lift mounting
Pinch lift cam
Pinch cam gear
Cylinder chip earth
Cylinder complete
Upper cylinder assembly
Supply reel assembly
Take up reel assembly
S reel gear
T reel gear
Reel pulley
Reel drive
Special washer 2.4 x 6 x 0.25
system
Clutch mounting complete
Reel belt
Capstan motor
Friction gear assembly
S brake assembly
Brake
T brake assembly
system
Capstan brake assembly
T soft brake assembly
Loading motor assembly
Damper
Worm gear complete
Main cam
Special washer 3.6 x 0.5
Loading
Wheel gear 1
drive
Wheel gear 2
Opt pinch relay gear
system
Crescent slide
S load gear
Front rack gear
Start rack gear
Pinion gear
Back tension torque
Perform-
FF, REW torque
ance
PLAY torque
checks
REV torque
This periodic maintenance check table changes considerably according to the using conditions and environment.
This is an annual periodic maintenance check table. Repeat this maintenance table every year.
As life may be shortened if foreign particles and dusts remain accumulated on the tape guides and rotating and
contacting portions, clean if dirty.
Dusts and other foreign particles on the tape guides may also shorten the tape life and lower picture quality, therefore
clean thoroughly.
NOTE: OIL AND GREASE
• Always use the specified brands of oil and grease. If
you use a grease with the wrong viscosity, for example,
this can lead to all sorts of problems. Be careful to keep
the oil and grease free of dust and foreign bodies.
• A "drop" of oil is the amount of oil remaining on the tip
of a rod with a diameter of 1.5mm after it is dipped in oil
to a depth of 1cm and then taken out.
2000 4000 6000 8000
PB back tension torque: 25~50g/cm
FF, REW: more than 600g•cm
PLAY: 55~110g•cm
REVIEW: 100~210g•cm
–2–
Cleaning
Check
Remarks
Check, Replace
Oil
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