Caution – Bloom Manufacturing 1200H Series User Manual
Page 6

Section 5
Speed Reducer Installation
• To must make sure that your speed Reducer is securely mounted in order for it to
function properly and to ensure safe operation.
• The mount must be flat to ensure proper alignment of the gearbox
The mount must be flat to ensure proper alignment of the gearbox.
• Speed Reducers must never be fastened directly to the frame of a truck. Mounting
brackets should be used.
• With a hydraulically driven Speed Reducer, make sure the hydraulic system is clean
and that all components function properly, especially the relief valve.
Speed Reducer Series
CAUTION
Speed Reducer Series
1000H
1100H 1200H
Base Mount (steel)
Thickness
Angle Mounts (steel)
Length
1/2”
2-1/2”
1/2”
2-1/2”
Hardware Requirements
1/2”
2-1/2”
Length
Width
Thickness
Capscrews (Hexhead)
Size
Thread
Grade
2 1/2
2-1/2””
1/4”
1/2”
13 UNC
5
2 1/2
2-1/2””
1/4”
1/2”
13 UNC
5
2 1/2
2-1/2””
1/4”
1/2”
13 UNC
5
Torque / Tightening (foot pounds)
57
57
Section 6
Speed Reducer Operation
To familiarize yourself with the Speed Reducer run it for a few minutes to understand the controls and the “feel” of the
57
• To familiarize yourself with the Speed Reducer, run it for a few minutes to understand the controls and the “feel” of the
Speed Reducer. Pay particular attention to the controls and how they operate.
• Make sure you understand which way the Speed Reducer will rotate when the control lever is moved.
• Always make sure that all people are clear of the load before beginning a Speed Reducer operation.
• Do Not attempt to defeat the relief valve.
(a) Automatic Safety Brake:
(a) Automatic Safety Brake:
Bloom 1000H, 1100H & 1200H series speed reducers are equipped with an automatic hydraulic failsafe brakes ( spring
applied hydraulic release ) to hold suspended loads.
Spring applied hydraulic release brake automatically holds load when hydraulic pressure is released. There are
no adjustments to these brakes. They are adjusted only at the factory. DO NOT attempt to change any brake setting in
the field. Double counter balance valve adds additional load holding capability by locking hydraulic oil in motor.
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Bloom Mfg Inc. 319-827-1139 319-827-1140 fax www.bloommfg.com