Olympus BH2 Series Volledige demontage, reiniging en hermontage - Pagina 29

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Olympus BH2 Series Volledige demontage, reiniging en hermontage

Figure 87 – Reinstall slotted stop screw for the lock collar

Reinstall the Left-Hand Coarse-Focus Knob

Position the left-hand coarse-focus knob over the brass

shaft mount, aligning the three holes in the plastic knob

with the three tapped holes in the brass shaft mount.

Use a suitable JIS screwdriver to reinstall the three

M2.6X5 pan-head screws to secure the knob onto the

brass shaft mount (see

these screws or the plastic knob may crack.

Figure 88 – Reinstall the left-hand coarse-focus knob

Reinstall the Fine-Focus Thrust Washers

Clean the old grease from the nylon thrust washer and

apply a light coating of fresh grease to both sides of this

washer. Reinstall the nylon thrust washer onto the

shoulder of the brass shaft mount (see

grease should hold the nylon thrust washer in position

on the brass shaft mount during the subsequent

assembly steps.

Complete Teardown, Cleaning, and Reassembly of the Olympus BH-2 Coaxial Focus Mechanism

Figure

88). Do not overtighten

Figure

89). The

Figure 89 – Reinstall nylon washer onto the shaft mount

Clean the old grease from the curved-disk spring washer

and apply a fresh coating of grease to both sides of this

washer. Reinstall the curved-disk spring washer over

the top of the nylon thrust washer (see

Figure 90 – Reinstall spring washer over the nylon washer

Reinstall the Fine-Focus Knob with Attached Shaft

Clean all of the old grease from the fine-focus shaft

Use a pipe cleaner wetted with solvent to thoroughly

clean the old grease from the bore of the coarse-focus

shaft. Shoot a bit of fresh grease into the hole in the

coarse-focus shaft on the right-hand side of the pillar

arm. Insert the shaft into the freshly greased hole (see

Figure

91), and move the shaft in and out, while

rotating the knob, going progressively deeper each

time, until fresh grease is pushed out of the hole on the

opposite side of the pillar arm. This action should

thoroughly distribute the grease throughout the bore of

the coarse-focus shaft. Remove any grease squeeze-out

from the hole on the opposite side of the pillar arm.

Try to keep your mind out of the gutter for this part.

Figure

90).

Revision 4

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