Sambo SB-SR series spur gear operator Introduction 1.1 Purpose The installation and maintenance manual (IOM) explains how to install and maintain the Sambo SR series gearbox. Information on installation, disassembly, reassembly, lubrication and product weights is provided. 1.2 User Safety Safety notices in this manual detail precautions the user must take to reduce the risk of personal injury and damage to the equipment.
WARNING: Do not exceed any design limitations or make modifications to this equipment without first consulting Mechanical Advantage. WARNING: Use of this product must be suspended any time it fails to operate properly.
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Sambo SB-SR series spur gear operator 2.6.1 Installing a Gearbox with a Threaded Stem Nut – SR50 through SR800 and SR200H through SR800H Position the gearbox above the valve stem. Rotate the gearbox handwheel or wrench nut several turns until there is positive engagement between the valve stem and the gearbox Stem Nut.
Sambo SB series bevel gear operator 12. Install the Thrust Base (pc# 30) with O-Ring (pc# 29) onto the Thrust Housing (pc# 21) and Stem Nut (pc# 26), using Socket Head Cap Screws (pc# 31). CAUTION: Care must be taken to ensure that the O-ring (pc# 29) located in the Thrust Base (pc# 30) is not damaged during installation. 13.
Sambo SB-SR series spur gear operator Lubrication SAMBO SB-SR gearboxes are shipped with the following lubricants: Table 3.1 – Lubricants Product Lubricant Soap Base Temperature Range SR50 through SR800 Zenith EPSB-2 Calcium -20°C to 200°C SR200H through SR800H Zenith EPSB-2 Calcium -20°C to 200°C...
Sambo SB-SR series spur gear operator Disassembly and Reassembly Instructions WARNING: See Section 2.4 Safety Precautions and 2.5 Safety Practices before undertaking the steps below. 5.1 Disassembly and Reassembly of SR50 through SR800 Disassembly Instructions Refer to Figure 5.1 Remove the two threaded Lock Nuts (pc# 2 7) from the Drive Sleeve (pc# 10), accessed through the top of the Housing (pc# 1).
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Sambo SB-SR series spur gear operator Remove the Input Flange (pc# 32) with Oil Seal (pc# 33) and Gasket (pc# 2) Remove the Helicall Pinion subassembly from the Housing (pc# 1). 12. Remove the upper Thrust Ball Bearing (pc# 4) from the Housing (pc# 1).
Sambo SB-SR series spur gear operator 5.2 Disassembly and Reassembly of SR50H through SR800H Disassembly Instructions Refer to Figure 5.2 Remove the Stem Cover Adapter (pc# 38) and O-Rings (pc# 39 and pc# 40). Remove the Input Flange (pc# 42) with Oil Seal (pc# 43 and pc# 2) by removing Socket Head hex Screws (pc# 44).
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Sambo SB-SR series spur gear operator Install the Bearing (pc# 13 and pc# 5) at Housing and Base. Install the Idle gear (pc# 7) and Helical gear (pc# 8) after That put Snap ring (pc# 9) Install the Helicall Pinion (pc# 12) subassembly into the Housing (pc# 1).
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