Shaft Log Packless Sealing System; Controls; Steering & Shifter/Throttle System - Maxum 3700 SCR Supplemental Owner's Manual

16 Chapter 2: Components/Systems
Checking Alignment
Since engine alignment requires moving the engine, it should be performed by a marine mechanic. An alignment
check can be performed, however, when the following steps are followed:
1. Remove the flange bolts at the transmission-to-shaft coupling and slide the shaft aft until the flanges are approx-
imately 1/4" apart.
2. Rotate the shaft to see if there is obvious "wobble" of the shaft flange. If there is, it may indicate that the shaft
has been damaged and should be inspected by a marine mechanic as soon as possible.
3. Move the shaft up and down and from side-to-side to determine, as closely as possible, the central position
where the shaft is normally located. At this position, the transmission flange should align with the shaft flange
without moving the shaft more than 1/8". If this is not the case, a misalignment condition exists (see caution on
bottom of the previous page).
4. Move the shaft flange into contact with the transmission flange.
5. Check the gap between flange faces by attempting to insert a 0.003"
feeler gauge at the top, bottom and each side.
6. Repeat this operation after rotating the shaft flange 1/4 turn (3 times).
If the feeler gauge can be easily inserted at any point, a misalignment
condition exists (see caution on bottom of the previous page).
7. Reinstall the flange bolts, nuts and lock washers (if provided) and torque
to the specifications listed in the table to the right.
8. Recheck flange bolt torque after 20 hours of operation.
Replacement flange bolts, nuts and washers must be corrosion resistant and grade 8 or better.

Shaft Log Packless Sealing System

The shaft seal, which is part of the shaft log packless sealing system, is a maintenance-free, watertight seal that
doesn't require packing or adjustments.

Controls

Steering & Shifter/Throttle System
Your yacht is equipped with a manual
hydraulic steering system, therefore the
system will not operate as easily as a car's
power steering.
• The shifter/throttle controls are located at
the helm.
• A rhythmic pulsing when turning the
wheel is a characteristic of the pump and
is not a malfunction. Also, when coming
off a hard-over position, a resistance may
be felt, followed by a distinct sound. This
is a normal situation resulting from the
release of the check valve.
• The steering fluid level should be checked
according to the instructions and mainte-
nance suggestions outlined in the steering
manual supplied in the owner's packet.
37OO SCR Sport Yacht
•
Owner's Manual Supplement
NOTICE
TYPICAL HYDRAULIC STEERING ASSEMBLY
OPTIONAL
AUTO PILOT
STEERING
TIE-BAR
JAM NUT & CLEVIS
ASSEMBLY (TYPICAL)
AFT
HYDRAULIC
HOSES TO HELM
FLANGE BOLT SPECIFICATIONS
BOLT SIZE TORQUE
3/8" - 24 40 +/- 7 lb.
7/16" - 20 65 +/- 10 lb.
1/2" - 20 95 +/- 15 lb.
5/8" - 18 200 +/- 30 lb.
M16 x 1.5 175 +/- 25 lb.
HYDRAULIC STEERING PUMP