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Olympus BH2-BI30 manual available for free PDF download: Complete Teardown, Cleaning, And Reassembly
Olympus BH2-BI30 Complete Teardown, Cleaning, And Reassembly (34 pages)
Binocular Viewing Head
Brand:
Olympus
| Category:
Binoculars
| Size: 3.11 MB
Table of Contents
Table of Contents
2
Introduction
7
Scope of this Document
7
Before Attempting Your Own Service
7
Common Problems with the BH2-BI30 Head
7
Interocular-Distance Slide Is Stiff or Seized
7
Focus Ring on Left-Hand Ocular Tube Is Stiff or Seized
7
Internal Optics Are Dirty
7
Figure 1 - the Jentsch Style BH2-BI30 Viewing Head
7
Optical Alignment Is Poor
8
Figure 2 - Head of a Typical JIS Screw
8
Left-Hand and Right-Hand Side Designations
8
Tools Needed
8
Electric Heat Gun
8
A few Words about JIS Screws
8
Disassembling the BH2-BI30 Viewing Head
8
Supplies Needed
9
Recommended Solvents
9
Safety Considerations with Solvents
9
Solvent Compatibility with Parts and Finishes
9
Recommended Lubricants
9
Label Parts for Identification and Reassembly
9
Servicing the BH2-BI30 Binocular Viewing Head
9
Remove the Helical Focus Ring (Left)
10
Remove the Plastic Finger Grip (Left)
10
Figure 3 - Loosen Set Screws Securing Helical Focus Ring (Left)
10
Figure 4 - Remove Helical Focus Ring from Ocular Tube (Left)
10
Figure 5 - Screws Securing Finger Grip to the Slide (Left)
10
Figure 6 - Remove Screws Securing Finger Grip (Left)
10
Figure 7 - Remove Front Screw from Finger Grip (Left)
10
Figure 8 - Remove Finger Grip from Ocular Tube (Left)
10
Remove the Plastic Finger Grip (Right)
11
Remove the Graduated Center Cover
11
Figure 9 - Screws Securing Finger Grip to Slide (Right)
11
Figure 10 - Remove Screws Securing Finger Grip (Right)
11
Figure 11 - Remove Front Screw from Finger Grip (Right)
11
Figure 12 - Remove Finger Grip from Ocular Tube (Right)
11
Figure 13 - Remove Screws Securing Center Cover (Top)
11
Figure 14 - Remove Screws Securing Center Cover (Bottom)
11
Remove the Frame Assembly from the Main Housing
12
Remove Mounting Disk Assembly from Main Housing
12
Figure 15 - Remove the Center Cover from the Frame
12
Figure 16 - Screws Securing Front Frame to the Main Housing
12
Figure 17 - Remove Screws Securing Front Frame to Housing
12
Figure 18 - Remove Frame Assembly from Main Housing
12
Figure 19 - Apply Tape to Mark Placement of Mounting Disk
12
Figure 20 - Remove Screws Securing Mounting Disk Assembly
12
Reinstall Mounting Disk Assembly Onto Main Housing
13
Remove the Tension Springs for the Follower Keys
13
Figure 21 - Remove the Mounting Disk Assembly
13
Figure 22 - the Mounting Disk Assembly
13
Figure 23 - Place the Mounting Disk Assembly into Position
13
Figure 24 - Secure the Mounting Disk Assembly in Position
13
Figure 25 - the Tensions Springs for the Follower Keys
13
Figure 26 - Relieve the Pre-Load on the Straight Spring
13
Remove the Follower Keys
14
Clean Inner Tubes and Regrease the Helical Focus Ring
14
Figure 27 - Remove the Screw Securing the Straight Spring
14
Figure 28 - Remove the Straight Spring
14
Figure 29 - Remove the Screw Securing the Bent Spring
14
Figure 30 - Remove the Bent Spring
14
Figure 31 - Remove the Follower Key (Right)
14
Figure 32 - Remove the Follower Key (Left)
14
Figure 33 - Remove Helical/Polished Inner Tubes (Left)
15
Figure 34 - Remove Grease from Inner Tube (Left)
15
Figure 35 - Unscrew Helical Tube from the Inner Tube (Left)
15
Figure 36 - Clean Old Grease from the Outer Helicoid Threads
15
Figure 37 - Clean Grease from Threads of Inner Tube (Left)
15
Figure 38 - Apply Fresh Grease to the Outer Helicoid Threads
15
Figure 39 - Apply Fresh Grease to Inner Helicoid Threads (Left)
16
Figure 40 - Thread the Helical Tube into the Inner Tube (Left)
16
Figure 41 - Remove Grease from the Ocular Tube (Left)
16
Figure 42 - Reinstall the Inner / Helical Tubes (Left)
16
Figure 43 - Remove Black Trim Ring from Ocular Tube (Right)
16
Figure 44 - Remove the Fixed Sleeve/Inner Tubes (Right)
16
Remove the Ocular Slide Assembly (Left)
17
Figure 45 - Remove Grease from the Inner Tube (Right)
17
Figure 46 - Remove Grease from the Ocular Tube (Right)
17
Figure 47 - Reinstall the Fixed Sleeve / Inner Tube (Right)
17
Figure 48 - Remove Screws Securing Dovetail Block (Left)
17
Figure 49 - Remove Dovetail Block from the Frame (Left)
17
Figure 50 - Remove the Ocular Slide Assembly (Left)
17
Remove the Ocular Slide Assembly (Right)
18
Remove the Brass Pivot Lever
18
Figure 51 - the Ocular Slide Assembly (Left)
18
Figure 52 - Remove Screws Securing Dovetail Block (Right)
18
Figure 53 - Remove Dovetail Block from Frame (Right)
18
Figure 54 - Remove the Ocular Slide Assembly (Right)
18
Figure 55 - the Ocular Slide Assembly (Right)
18
Figure 56 - Remove Screw Holding Brass Pivot Lever in Place
18
Clean the Various Mechanical Parts
19
Figure 57 - Remove Brass Pivot Lever from the Frame
19
Figure 58 - Clean Old Grease from the Brass Pivot Lever
19
Figure 59 - Clean Grease from Pivot-Lever Bearing Surface
19
Figure 60 - Clean Grease from the Lower Dovetail Bevels
19
Figure 61 - Clean Old Grease from Upper Sliding Surfaces
19
Figure 62 - Clean Old Grease from Bevels of Slide (Right)
19
Remove the P3/P4 Prism Mount
20
Figure 63 - Clean Old Grease from Bevels of Slide (Left)
20
Figure 64 - Clean Old Grease from Back of Slide (Right)
20
Figure 65 - Clean Old Grease from Back of Slide (Left)
20
Figure 66 - Clean Old Grease from both Dovetail Blocks
20
Figure 67 - Remove Screws Securing the P3/P4 Prism Mount
20
Figure 68 - Remove P3/P4 Prism Mount with Prisms
20
Reinstall the P3/P4 Prism Mount
21
Clean the Various Optical Components
21
Figure 69 - the P3/P4 Prism Mount with P3 and P4 Prisms
21
Figure 70 - Place P3/P4 Prism Mount into Position on Frame
21
Figure 71 - Reinstall Screws to Secure P3/P4 Prism Mount
21
Figure 72 - Clean Face of Prism P1 in Mounting Dovetail
21
Figure 73 - Clean the Face of P2 Prism in the Main Housing
21
Figure 74 - Clean Three Faces of P3/P4 Prisms (View 1)
22
Figure 75 - Clean Three Faces of P3/P4 Prisms (View 2)
22
Figure 76 - Remove Sleeve/Inner Tube from Ocular Tube (Right)
22
Figure 77 - Clean Face 1 of the P5 Prism (Right)
22
Figure 78 - Clean Face 2 of the P5 Prism (Right)
22
Figure 79 - Lightly Grease Polished Inner Tube (Right)
22
Lubricate the Various Slide Parts
23
Figure 80 - Reinstall Inner Tube/Sleeve into Ocular Tube (Right)
23
Figure 81 - Remove Helical/Inner Tubes from Ocular Tube (Left)
23
Figure 82 - Clean Face 1 of the P6 Prism (Left)
23
Figure 83 - Clean Face 2 of the P6 Prism (Left)
23
Figure 84 - Lightly Grease the Polished Inner Tube (Left)
23
Figure 85 - Reinstall Helical/Inner Tubes into Ocular Tube (Left)
23
Figure 86 - Apply Grease to Lower Dovetail Bevels of Frame
24
Figure 87 - Apply Grease to Upper Sliding Surfaces of Frame
24
Figure 88 - Apply Grease to Pivot-Lever Bearing Surface of Frame
24
Figure 89 - Apply Grease to the Hole and Slots in Pivot Lever
24
Figure 90 - Embed Brass Pivot Lever into Grease on the Frame
24
Figure 91 - Reinstall Pivot-Shaft Screw to Secure Pivot Lever
24
Reinstall the Ocular Slide Assembly (Left)
25
Figure 92 - Apply Grease to Rear Bearing Surfaces (Right)
25
Figure 93 - Apply Grease to Rear Bearing Surfaces (Left)
25
Figure 94 - Seat Lower Bevel into the Bottom Dovetail (Left)
25
Figure 95 - Index Pin Engaged with Brass Pivot Lever (Left)
25
Figure 96 - Apply Grease to the Upper Bevel (Left)
25
Figure 97 - Place the Dovetail Block into Position (Left)
25
Reinstall the Ocular Slide Assembly (Right)
26
Figure 98 - Reinstall Screws to Secure Dovetail Block (Left)
26
Figure 99 - Seat Lower Bevel into Bottom Dovetail (Right)
26
Figure 100 - Index Pin Engaged with Brass Pivot Lever (Right)
26
Figure 101 - Apply Grease to the Upper Bevel (Right)
26
Figure 102 - Place the Dovetail Block into Position (Right)
26
Figure 103 - Reinstall Screws to Secure Dovetail Block (Right)
26
Grease the Follower-Key Slots in the Front Frame
27
Reinstall the Follower Keys
27
Reinstall the Tension Springs for the Follower Keys
27
Figure 104 - Grease Two Slots in the Top of Front Frame
27
Figure 105 - Position Ocular Slide to Center Hole in Slot (Left)
27
Figure 106 - Reinstall the Follower Key into the Slot (Left)
27
Figure 107 - Position Ocular Tube to Center Hole in Slot (Right)
27
Figure 108 - Reinstall the Follower Key into the Slot (Right)
27
Figure 109 - Hook Straight Spring over Follower Key (Right)
27
Figure 110 - Align Coil of Straight Spring with Hole (Right)
28
Figure 111 - Secure the Straight Spring with Screw (Right)
28
Figure 112 - Hook Bent Spring over Follower Key (Left)
28
Figure 113 - Align Coil of Bent Spring with Hole (Left)
28
Figure 114 - Secure the Bent Spring with Screw (Left)
28
Figure 115 - Pre-Load the Two Tension Springs
28
Reinstall the Frame Assembly into the Main Housing
29
Reinstall the Graduated Center Plate
29
Figure 116 - Slide the Frame Assembly into the Main Housing
29
Figure 117 - Position Frame so Holes Line up with Housing
29
Figure 118 - Secure Frame Assembly into the Main Housing
29
Figure 119 - Spread the Two Ocular Tubes Apart
29
Figure 120 - Position Center Plate to Align with Holes in Frame
29
Figure 121 - Secure the Plate with Two Screws (Top)
29
Reinstall the Plastic Finger Grips
30
Figure 122 - Secure the Plate with Two Screws (Bottom)
30
Figure 123 - Set the Ocular Tubes to Their Maximum Spacing
30
Figure 124 - Place the Finger Grip into Position (Left)
30
Figure 125 - Reinstall Front Screw into the Finger Grip (Left)
30
Figure 126 - Reinstall Back Screws into the Finger Grip (Left)
30
Figure 127 - Place the Finger Grip into Position (Right)
30
Reinstall the Helical Focus Ring (Left) - most Accurate
31
Figure 128 - Reinstall Front Screw into the Finger Grip (Right)
31
Figure 129 - Reinstall Back Screws into the Finger Grip (Right)
31
Figure 130 - Place Helical Focus Ring Onto Ocular Tube (Left)
31
Figure 131 - Tighten Set Screws to Secure Helical Focus Ring
31
Reinstall the Helical Focus Ring (Left) - Less Accurate
32
Reinstall the Black Trim Ring for Ocular Tube (Right)
32
Figure 132 - Loosen Set Screws Securing Helical Focus Ring
32
Figure 133 - Align the Zero-Diopter Marking with White Dot
32
Figure 134 - Adjust Helical Focus Tube for Equal Tube Lengths
32
Figure 135 - Apply Spots of Adhesive to Ocular Tube (Right)
32
Original Olympus Documentation
33
Figure 136 - Place Trim Ring over the Ocular Tube (Right)
33
How to Contact the Author
33
Figure 137 - Press Trim Ring into Adhesive to Seat It (Right)
33
Figure 138 - the Olympus BH2-BI30 Repair Manual
33
Figure 139 - the Olympus BH2 (BHS) Repair Manual
33
Ready for Service
33
Appendix 1
34
Sources for Replacement Tools and Supplies Referenced in this Document
34
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