Dover OPW 790C-0050 Посібник із швидкого старту - Сторінка 4
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790 Series Counterbalance
Parts List: 788, 789 Series Counterbalance
No.
Part
1
Torsion Spring
2
Spring Regulator
3
Bolt
4
Lock Washer
5
Spring Keeper
6
Spring Arm
7
Lever
8
E-ring
8
Pin
10
Support Bracket
11
Bearing Flange
12
Side Support
Maintenance 788, 789, 790 Series
Lubrication
The torsion balance is provided with a self-lubricating Cylindrical Bearing. Only when operating
under severe conditions, a little oil may be applied to Bearing [7]. Pins [13] on Spring Arm [23]
and Link Arm [9] should have some oil quarterly.
Danger! Before performing any maintenance, always secure the Loading Arm and remove all tension from the counterbalance
DANGER
-- a torsion spring. The Loading Arm counterbalance spring contains a substantial amount of stored energy. You must relieve
this energy before any disassembly. Failure to remove all tension from the counterbalance spring of the Loading Arm before
maintenance may cause serious personal injury or death.
WARNING! While installing and using the Loading Arm, always wear adequate personal protection, including hard hats, gloves,
WARNING
and steel-toed work boots. Failure to wear adequate personal protection may cause serious personal injury or death.
WARNING! Always follow the procedures prescribed in this Document. Failing to follow the procedures prescribed may damage
WARNING
the Loading Arm and cause serious personal injury or death. Consult Loading Arm Installation, Maintenance & Safety Manual for
more details.
No.
Part
13
Snubber Block
14
Lock Washer
15
Bolt
16
Bolt
17
Nut
18
Screw
19
Cover (NOT SHOWN)
20
Spring Compression
21
Snubber Retainer
22
Snubber Plunger
23
E-ring
24
Pin
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a wholly-owned subsidiary of Dover Corporation.
3
4
5
2
15
14
13
11
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Lebanon, Ohio 45036, USA
Phone: (800) 547-9393
7
8
6
9
10
1
3
12
23
24
16
17
3
18
22
21
20
19